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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1726580.pdf | 390 kB | Shaun Ewing | Sept 03, 1929 00:00 |
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US-1726580-A // Thermionic vacuum tube // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Sept 03, 1929 00:00 | US-1726580-A // Thermionic vacuum tube // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1655448.pdf | 390 kB | Shaun Ewing | Jan 10, 1928 00:00 |
|
US-1655448-A // Printing telegraph system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Jan 10, 1928 00:00 | US-1655448-A // Printing telegraph system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1783132.pdf | 390 kB | Shaun Ewing | Nov 25, 1930 00:00 |
|
US-1783132-A // Mounting for piezo-electric devices // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Nov 25, 1930 00:00 | US-1783132-A // Mounting for piezo-electric devices // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1737672.pdf | 390 kB | Shaun Ewing | Dec 03, 1929 00:00 |
|
US-1737672-A // Radio printing-telegraph system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1737672-A // Radio printing-telegraph system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1780245.pdf | 390 kB | Shaun Ewing | Nov 04, 1930 00:00 |
|
US-1780245-A // Telephone and telegraph system // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Nov 04, 1930 00:00 | US-1780245-A // Telephone and telegraph system // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1763751.pdf | 390 kB | Shaun Ewing | Jun 17, 1930 00:00 |
|
US-1763751-A // Radio receiving system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Jun 17, 1930 00:00 | US-1763751-A // Radio receiving system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1473674.pdf | 389 kB | Shaun Ewing | Nov 13, 1923 00:00 |
|
US-1473674-A // Means for and method of modulation // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Nov 13, 1923 00:00 | US-1473674-A // Means for and method of modulation // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1760920.pdf | 389 kB | Shaun Ewing | Jun 03, 1930 00:00 |
|
US-1760920-A // Testing system // Stromberg Sven E. // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Jun 03, 1930 00:00 | US-1760920-A // Testing system // Stromberg Sven E. // American Telephone & Telegraph | ||||
| PDF File 1680377.pdf | 389 kB | Shaun Ewing | Aug 14, 1928 00:00 |
|
US-1680377-A // Alternating potential generator // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Aug 14, 1928 00:00 | US-1680377-A // Alternating potential generator // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1637404.pdf | 389 kB | Shaun Ewing | Aug 02, 1927 00:00 |
|
US-1637404-A // Signaling system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Aug 02, 1927 00:00 | US-1637404-A // Signaling system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1674709.pdf | 389 kB | Shaun Ewing | Jun 26, 1928 00:00 |
|
US-1674709-A // Reeling device // Thomas William Grady // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Jun 26, 1928 00:00 | US-1674709-A // Reeling device // Thomas William Grady // American Telephone & Telegraph | ||||
| PDF File 1520098.pdf | 389 kB | Shaun Ewing | Dec 23, 1924 00:00 |
|
US-1520098-A // Signaling system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Dec 23, 1924 00:00 | US-1520098-A // Signaling system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1717400.pdf | 388 kB | Shaun Ewing | Jun 18, 1929 00:00 |
|
US-1717400-A // Phase-shifting network // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 388 kB | Shaun Ewing | Jun 18, 1929 00:00 | US-1717400-A // Phase-shifting network // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1550660.pdf | 388 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550660-A // Prevention of overloading in speech circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 388 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550660-A // Prevention of overloading in speech circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1754239.pdf | 387 kB | Shaun Ewing | Apr 15, 1930 00:00 |
|
US-1754239-A // Telephone signaling system // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754239-A // Telephone signaling system // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1406195.pdf | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 |
|
US-1406195-A // Testing apparatus for telephone-switchboard cords // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 | US-1406195-A // Testing apparatus for telephone-switchboard cords // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1587363.pdf | 387 kB | Shaun Ewing | Jun 01, 1926 00:00 |
|
US-1587363-A // Attenuation-controlling device // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Jun 01, 1926 00:00 | US-1587363-A // Attenuation-controlling device // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1406918.pdf | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 |
|
US-1406918-A // Testing system // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 | US-1406918-A // Testing system // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1716437.pdf | 387 kB | Shaun Ewing | Jun 11, 1929 00:00 |
|
US-1716437-A // Testing system // Gannett Danforth K. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Jun 11, 1929 00:00 | US-1716437-A // Testing system // Gannett Danforth K. // American Telephone & Telegraph | ||||
| PDF File 1428156.pdf | 386 kB | Shaun Ewing | Sept 05, 1922 00:00 |
|
US-1428156-A // Low-frequency amplifier // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 386 kB | Shaun Ewing | Sept 05, 1922 00:00 | US-1428156-A // Low-frequency amplifier // Espenschied Lloyd // American Telephone & Telegraph |
