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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 773472.pdf | 461 kB | Shaun Ewing | Oct 25, 1904 00:00 |
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US-773472-A // Electric circuit. // George A. Campbell // American Bell Telephone Co | |||
| Version 1 (current) | 461 kB | Shaun Ewing | Oct 25, 1904 00:00 | US-773472-A // Electric circuit. // George A. Campbell // American Bell Telephone Co | ||||
| PDF File 773372.pdf | 455 kB | Shaun Ewing | Oct 25, 1904 00:00 |
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US-773372-A // Electric circuit. // George A. Campbell // American Bell Telephone Co | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Oct 25, 1904 00:00 | US-773372-A // Electric circuit. // George A. Campbell // American Bell Telephone Co | ||||
| PDF File 761995.pdf | 1.04 MB | Shaun Ewing | Jun 07, 1904 00:00 |
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US-761995-A // Apparatus for reducing attenuation of electrical waves. // Michael I. Pupin // American Bell Telephone Co | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | Jun 07, 1904 00:00 | US-761995-A // Apparatus for reducing attenuation of electrical waves. // Michael I. Pupin // American Bell Telephone Co | ||||
| PDF File 755944.pdf | 527 kB | Shaun Ewing | Mar 29, 1904 00:00 |
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US-755944-A // Pneumatic musical apparatus. // Frank Schippers // American Bell And Chime Company | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Mar 29, 1904 00:00 | US-755944-A // Pneumatic musical apparatus. // Frank Schippers // American Bell And Chime Company | ||||
| PDF File 743564.pdf | 2.19 MB | Shaun Ewing | Nov 10, 1903 00:00 |
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US-743564-A // Automatic telephone-exchange. // Malcolm C. Rorty ; Albert M. Bullard // American Bell Telephone Co | |||
| Version 1 (current) | 2.19 MB | Shaun Ewing | Nov 10, 1903 00:00 | US-743564-A // Automatic telephone-exchange. // Malcolm C. Rorty ; Albert M. Bullard // American Bell Telephone Co | ||||
| PDF File 729104.pdf | 622 kB | Shaun Ewing | May 26, 1903 00:00 |
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US-729104-A // Electrical apparatus and circuits for electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 622 kB | Shaun Ewing | May 26, 1903 00:00 | US-729104-A // Electrical apparatus and circuits for electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | ||||
| PDF File 729103.pdf | 616 kB | Shaun Ewing | May 26, 1903 00:00 |
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US-729103-A // Method of electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 616 kB | Shaun Ewing | May 26, 1903 00:00 | US-729103-A // Method of electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | ||||
| PDF File 726476.pdf | 845 kB | Shaun Ewing | Apr 28, 1903 00:00 |
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US-726476-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 845 kB | Shaun Ewing | Apr 28, 1903 00:00 | US-726476-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | ||||
| PDF File 726368.pdf | 832 kB | Shaun Ewing | Apr 28, 1903 00:00 |
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US-726368-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 832 kB | Shaun Ewing | Apr 28, 1903 00:00 | US-726368-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | ||||
| PDF File 716287.pdf | 520 kB | Shaun Ewing | Dec 16, 1902 00:00 |
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US-716287-A // Key-plate for use in the manufacture of tune plates or cylinders. // Frank Schippers // American Bell And Chime Company | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Dec 16, 1902 00:00 | US-716287-A // Key-plate for use in the manufacture of tune plates or cylinders. // Frank Schippers // American Bell And Chime Company | ||||
| PDF File 712455.pdf | 913 kB | Shaun Ewing | Oct 28, 1902 00:00 |
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US-712455-A // Busy-test system. // David S. Hulfish // American Bell Telephone Co | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Oct 28, 1902 00:00 | US-712455-A // Busy-test system. // David S. Hulfish // American Bell Telephone Co | ||||
| PDF File 711973.pdf | 941 kB | Shaun Ewing | Oct 28, 1902 00:00 |
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US-711973-A // Signaling and switchboard apparatus for telephone-exchange circuits. // David S. Hulfish // American Bell Telephone Co | |||
| Version 1 (current) | 941 kB | Shaun Ewing | Oct 28, 1902 00:00 | US-711973-A // Signaling and switchboard apparatus for telephone-exchange circuits. // David S. Hulfish // American Bell Telephone Co | ||||
| PDF File 709740.pdf | 3.93 MB | Shaun Ewing | Sept 23, 1902 00:00 |
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US-709740-A // Automatic telephone-exchange system and apparatus. // Albert M. Bullard ; Malcolm C. Rorty // American Bell Telephone Co | |||
| Version 1 (current) | 3.93 MB | Shaun Ewing | Sept 23, 1902 00:00 | US-709740-A // Automatic telephone-exchange system and apparatus. // Albert M. Bullard ; Malcolm C. Rorty // American Bell Telephone Co | ||||
| PDF File 709739.pdf | 1.98 MB | Shaun Ewing | Sept 23, 1902 00:00 |
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US-709739-A // Automatic telephone-exchange. // Albert M. Bullard // American Bell Telephone Co | |||
| Version 1 (current) | 1.98 MB | Shaun Ewing | Sept 23, 1902 00:00 | US-709739-A // Automatic telephone-exchange. // Albert M. Bullard // American Bell Telephone Co | ||||
| PDF File 686340.pdf | 946 kB | Shaun Ewing | Nov 12, 1901 00:00 |
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US-686340-A // Service-meter apparatus for telephone-circuits. // Ernest C. Robes // American Bell Telephone Co | |||
| Version 1 (current) | 946 kB | Shaun Ewing | Nov 12, 1901 00:00 | US-686340-A // Service-meter apparatus for telephone-circuits. // Ernest C. Robes // American Bell Telephone Co | ||||
| PDF File 685401.pdf | 1.08 MB | Shaun Ewing | Oct 29, 1901 00:00 |
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US-685401-A // Universal call-circuit and apparatus for toll service. // Angus S. Hibbard // American Bell Telephone Co | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Oct 29, 1901 00:00 | US-685401-A // Universal call-circuit and apparatus for toll service. // Angus S. Hibbard // American Bell Telephone Co | ||||
| PDF File 682152.pdf | 875 kB | Shaun Ewing | Sept 03, 1901 00:00 |
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US-682152-A // Telephone-exchange apparatus. // Almon B. Stetson // American Bell Telephone Co | |||
| Version 1 (current) | 875 kB | Shaun Ewing | Sept 03, 1901 00:00 | US-682152-A // Telephone-exchange apparatus. // Almon B. Stetson // American Bell Telephone Co | ||||
| PDF File 669901.pdf | 1.08 MB | Shaun Ewing | Mar 12, 1901 00:00 |
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US-669901-A // System of central current-supply for private-line telephone-circuits. // Malcolm C. Rorty // American Bell Telephone Co | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Mar 12, 1901 00:00 | US-669901-A // System of central current-supply for private-line telephone-circuits. // Malcolm C. Rorty // American Bell Telephone Co | ||||
| PDF File 669900.pdf | 453 kB | Shaun Ewing | Mar 12, 1901 00:00 |
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US-669900-A // Telephone service-meter and circuit. // David S. Hulfish // American Bell Telephone Co | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Mar 12, 1901 00:00 | US-669900-A // Telephone service-meter and circuit. // David S. Hulfish // American Bell Telephone Co | ||||
| PDF File 668554.pdf | 868 kB | Shaun Ewing | Feb 19, 1901 00:00 |
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US-668554-A // Electrical relay and circuit. // Albert M. Bullard ; Louis A. Falk // American Bell Telephone Co | |||
| Version 1 (current) | 868 kB | Shaun Ewing | Feb 19, 1901 00:00 | US-668554-A // Electrical relay and circuit. // Albert M. Bullard ; Louis A. Falk // American Bell Telephone Co |
