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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1604981.pdf | 818 kB | Shaun Ewing | Nov 02, 1926 00:00 |
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US-1604981-A // Selective circuit // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 818 kB | Shaun Ewing | Nov 02, 1926 00:00 | US-1604981-A // Selective circuit // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1501926.pdf | 817 kB | Shaun Ewing | Jul 22, 1924 00:00 |
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US-1501926-A // Loaded transmission circuit // Shaw Thomas // American Telephone & Telegraph | |||
| Version 1 (current) | 817 kB | Shaun Ewing | Jul 22, 1924 00:00 | US-1501926-A // Loaded transmission circuit // Shaw Thomas // American Telephone & Telegraph | ||||
| PDF File 1466708.pdf | 814 kB | Shaun Ewing | Sept 04, 1923 00:00 |
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US-1466708-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Sept 04, 1923 00:00 | US-1466708-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1427695.pdf | 813 kB | Shaun Ewing | Aug 29, 1922 00:00 |
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US-1427695-A // Switchboard call-signal apparatus and circuits // Morris Robert W. // American Telephone & Telegraph | |||
| Version 1 (current) | 813 kB | Shaun Ewing | Aug 29, 1922 00:00 | US-1427695-A // Switchboard call-signal apparatus and circuits // Morris Robert W. // American Telephone & Telegraph | ||||
| PDF File 1528982.pdf | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 |
|
US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | |||
| Version 1 (current) | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | ||||
| PDF File 1628697.pdf | 808 kB | Shaun Ewing | May 17, 1927 00:00 |
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US-1628697-A // Program transmission over wires // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 808 kB | Shaun Ewing | May 17, 1927 00:00 | US-1628697-A // Program transmission over wires // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1564224.pdf | 807 kB | Shaun Ewing | Dec 08, 1925 00:00 |
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US-1564224-A // Modulating apparatus for telegraph signals // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Dec 08, 1925 00:00 | US-1564224-A // Modulating apparatus for telegraph signals // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1573794.pdf | 806 kB | Shaun Ewing | Feb 23, 1926 00:00 |
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US-1573794-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 806 kB | Shaun Ewing | Feb 23, 1926 00:00 | US-1573794-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1518495.pdf | 805 kB | Shaun Ewing | Dec 09, 1924 00:00 |
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US-1518495-A // Selective circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 805 kB | Shaun Ewing | Dec 09, 1924 00:00 | US-1518495-A // Selective circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1548059.pdf | 805 kB | Shaun Ewing | Aug 04, 1925 00:00 |
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US-1548059-A // Electrical testing system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 805 kB | Shaun Ewing | Aug 04, 1925 00:00 | US-1548059-A // Electrical testing system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1603305.pdf | 803 kB | Shaun Ewing | Oct 19, 1926 00:00 |
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US-1603305-A // Electrical network and method of transmitting electric currents // Zobel Otto J. // American Telephone & Telegraph | |||
| Version 1 (current) | 803 kB | Shaun Ewing | Oct 19, 1926 00:00 | US-1603305-A // Electrical network and method of transmitting electric currents // Zobel Otto J. // American Telephone & Telegraph | ||||
| PDF File 1509184.pdf | 802 kB | Shaun Ewing | Sept 23, 1924 00:00 |
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US-1509184-A // Multiple-band wave filter // Zobel Otto J. // American Telephone & Telegraph | |||
| Version 1 (current) | 802 kB | Shaun Ewing | Sept 23, 1924 00:00 | US-1509184-A // Multiple-band wave filter // Zobel Otto J. // American Telephone & Telegraph | ||||
| PDF File 1645573.pdf | 802 kB | Shaun Ewing | Oct 18, 1927 00:00 |
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US-1645573-A // Telephone-exchange system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 802 kB | Shaun Ewing | Oct 18, 1927 00:00 | US-1645573-A // Telephone-exchange system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1468687.pdf | 798 kB | Shaun Ewing | Sept 25, 1923 00:00 |
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US-1468687-A // Transmission regulation // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 798 kB | Shaun Ewing | Sept 25, 1923 00:00 | US-1468687-A // Transmission regulation // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1415907.pdf | 797 kB | Shaun Ewing | May 16, 1922 00:00 |
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US-1415907-A // Means for equalizing transmission over lines of different electrical charactrristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 797 kB | Shaun Ewing | May 16, 1922 00:00 | US-1415907-A // Means for equalizing transmission over lines of different electrical charactrristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1472035.pdf | 797 kB | Shaun Ewing | Oct 30, 1923 00:00 |
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US-1472035-A // Means for signaling over multiplex transmission channels // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 797 kB | Shaun Ewing | Oct 30, 1923 00:00 | US-1472035-A // Means for signaling over multiplex transmission channels // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1399695.pdf | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 |
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US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 | US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1465972.pdf | 796 kB | Shaun Ewing | Aug 28, 1923 00:00 |
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US-1465972-A // Transmission regulating circuits // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Aug 28, 1923 00:00 | US-1465972-A // Transmission regulating circuits // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1781093.pdf | 793 kB | Shaun Ewing | Nov 11, 1930 00:00 |
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US-1781093-A // Concentric conductor system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 793 kB | Shaun Ewing | Nov 11, 1930 00:00 | US-1781093-A // Concentric conductor system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1560610.pdf | 793 kB | Shaun Ewing | Nov 10, 1925 00:00 |
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US-1560610-A // Supervisory circuits // Shoffstall Hugh F. // American Telephone And Telephg | |||
| Version 1 (current) | 793 kB | Shaun Ewing | Nov 10, 1925 00:00 | US-1560610-A // Supervisory circuits // Shoffstall Hugh F. // American Telephone And Telephg |
