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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 663783.pdf | 557 kB | Shaun Ewing | Dec 11, 1900 00:00 |
|
US-663783-A // Selective-signal system. // Frank A. Pickernell // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Dec 11, 1900 00:00 | US-663783-A // Selective-signal system. // Frank A. Pickernell // American Telephone & Telegraph | ||||
| PDF File 637846.pdf | 599 kB | Shaun Ewing | Nov 28, 1899 00:00 |
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US-637846-A // Electrical and selective signaling. // John A. Barrett // American Telephone & Telegraph | |||
| Version 1 (current) | 599 kB | Shaun Ewing | Nov 28, 1899 00:00 | US-637846-A // Electrical and selective signaling. // John A. Barrett // American Telephone & Telegraph | ||||
| PDF File 626132.pdf | 995 kB | Shaun Ewing | May 30, 1899 00:00 |
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US-626132-A // Selective privacy-switch for multiple-station telephone-lines // John A. Barrett, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 995 kB | Shaun Ewing | May 30, 1899 00:00 | US-626132-A // Selective privacy-switch for multiple-station telephone-lines // John A. Barrett, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 626131.pdf | 1.38 MB | Shaun Ewing | May 30, 1899 00:00 |
|
US-626131-A // Selective electric signal // John A. Barrett, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 1.38 MB | Shaun Ewing | May 30, 1899 00:00 | US-626131-A // Selective electric signal // John A. Barrett, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 596036.pdf | 546 kB | Shaun Ewing | Dec 21, 1897 00:00 |
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US-596036-A // Auxiliary apparatus for selective electrical signals // George W. Whittemore, Of New York // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 546 kB | Shaun Ewing | Dec 21, 1897 00:00 | US-596036-A // Auxiliary apparatus for selective electrical signals // George W. Whittemore, Of New York // American Telephone & Telegraph, New York NY | ||||
| PDF File 594979.pdf | 1.65 MB | Shaun Ewing | Dec 07, 1897 00:00 |
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US-594979-A // Telephonic selective signaling // John" A. Barrett, Of New York // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 1.65 MB | Shaun Ewing | Dec 07, 1897 00:00 | US-594979-A // Telephonic selective signaling // John" A. Barrett, Of New York // American Telephone & Telegraph, New York NY | ||||
| PDF File 592769.pdf | 654 kB | Shaun Ewing | Nov 02, 1897 00:00 |
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US-592769-A // Method of and apparatus for relaying telephonic messages // Albert W. Erdman, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Nov 02, 1897 00:00 | US-592769-A // Method of and apparatus for relaying telephonic messages // Albert W. Erdman, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 582107.pdf | 1.93 MB | Shaun Ewing | May 04, 1897 00:00 |
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US-582107-A // Selective signaling circuit // Geoege W. Wiiittemore And John A. Barrett, Of And Warren M. Craft Of New York N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 1.93 MB | Shaun Ewing | May 04, 1897 00:00 | US-582107-A // Selective signaling circuit // Geoege W. Wiiittemore And John A. Barrett, Of And Warren M. Craft Of New York N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 560861.pdf | 833 kB | Shaun Ewing | May 26, 1896 00:00 |
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US-560861-A // Multiple Telephony. // Frank A. Pickernell, of New Jersey And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 833 kB | Shaun Ewing | May 26, 1896 00:00 | US-560861-A // Multiple Telephony. // Frank A. Pickernell, of New Jersey And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 558310.pdf | 444 kB | Shaun Ewing | Apr 14, 1896 00:00 |
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US-558310-A // Apparatus for composite transmission of intelligence // Frank A. Pickernell, of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Apr 14, 1896 00:00 | US-558310-A // Apparatus for composite transmission of intelligence // Frank A. Pickernell, of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 553605.pdf | 445 kB | Shaun Ewing | Jan 28, 1896 00:00 |
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US-553605-A // Composite telegraphic and telephonic transmission // Edward E. Backus, Of N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Jan 28, 1896 00:00 | US-553605-A // Composite telegraphic and telephonic transmission // Edward E. Backus, Of N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 534373.pdf | 489 kB | Shaun Ewing | Feb 19, 1895 00:00 |
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US-534373-A // Telephone and signaling circuit // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 489 kB | Shaun Ewing | Feb 19, 1895 00:00 | US-534373-A // Telephone and signaling circuit // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 520365.pdf | 315 kB | Shaun Ewing | May 22, 1894 00:00 |
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US-520365-A // Visible ssgnal device // William Ii. Lane, Of And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 315 kB | Shaun Ewing | May 22, 1894 00:00 | US-520365-A // Visible ssgnal device // William Ii. Lane, Of And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 509367.pdf | 740 kB | Shaun Ewing | Nov 28, 1893 00:00 |
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US-509367-A // Switchboard-circuit and signaling apparatus // Francis W. Dunbar And Edmund S. C. May, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 740 kB | Shaun Ewing | Nov 28, 1893 00:00 | US-509367-A // Switchboard-circuit and signaling apparatus // Francis W. Dunbar And Edmund S. C. May, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 506884.pdf | 541 kB | Shaun Ewing | Oct 17, 1893 00:00 |
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US-506884-A // Apparatus for suppressing telephone disturbing-currents // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 541 kB | Shaun Ewing | Oct 17, 1893 00:00 | US-506884-A // Apparatus for suppressing telephone disturbing-currents // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 506883.pdf | 384 kB | Shaun Ewing | Oct 17, 1893 00:00 |
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US-506883-A // Visible signal // Frederic S. Perrin, Of N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Oct 17, 1893 00:00 | US-506883-A // Visible signal // Frederic S. Perrin, Of N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 503252.pdf | 731 kB | Shaun Ewing | Aug 15, 1893 00:00 |
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US-503252-A // Electric switchboard // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Aug 15, 1893 00:00 | US-503252-A // Electric switchboard // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 502660.pdf | 442 kB | Shaun Ewing | Aug 01, 1893 00:00 |
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US-502660-A // Electric switchboard-signal // Francis W. Dunbar, Of N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 442 kB | Shaun Ewing | Aug 01, 1893 00:00 | US-502660-A // Electric switchboard-signal // Francis W. Dunbar, Of N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 501185.pdf | 267 kB | Shaun Ewing | Jul 11, 1893 00:00 |
|
US-501185-A // Visible signal // Francis W. Dunbar, Of N. T. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 267 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501185-A // Visible signal // Francis W. Dunbar, Of N. T. // American Telephone & Telegraph, New York NY | ||||
| PDF File 501102.pdf | 794 kB | Shaun Ewing | Jul 11, 1893 00:00 |
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US-501102-A // Telephone signaling apparatus and circuit // Frank A. Pickebnell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 794 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501102-A // Telephone signaling apparatus and circuit // Frank A. Pickebnell, Of New Jersey // American Telephone & Telegraph, New York NY |
