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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1690153.pdf | 314 kB | Shaun Ewing | Nov 06, 1928 00:00 |
|
US-1690153-A // Selective echo suppressor // Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 314 kB | Shaun Ewing | Nov 06, 1928 00:00 | US-1690153-A // Selective echo suppressor // Abraham Leonard G. // American Telephone & Telegraph | ||||
| PDF File 1591994.pdf | 314 kB | Shaun Ewing | Jul 13, 1926 00:00 |
|
US-1591994-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 314 kB | Shaun Ewing | Jul 13, 1926 00:00 | US-1591994-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1435980.pdf | 314 kB | Shaun Ewing | Nov 21, 1922 00:00 |
|
US-1435980-A // Means for and method of reducing cross talk in four-wire circuits // Renshaw Richard A. // American Telephone And Telecra | |||
| Version 1 (current) | 314 kB | Shaun Ewing | Nov 21, 1922 00:00 | US-1435980-A // Means for and method of reducing cross talk in four-wire circuits // Renshaw Richard A. // American Telephone And Telecra | ||||
| PDF File 1538948.pdf | 314 kB | Shaun Ewing | May 26, 1925 00:00 |
|
US-1538948-A // Transformer // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 314 kB | Shaun Ewing | May 26, 1925 00:00 | US-1538948-A // Transformer // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1697057.pdf | 313 kB | Shaun Ewing | Jan 01, 1929 00:00 |
|
US-1697057-A // Ringer // Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 313 kB | Shaun Ewing | Jan 01, 1929 00:00 | US-1697057-A // Ringer // Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1755244.pdf | 313 kB | Shaun Ewing | Apr 22, 1930 00:00 |
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US-1755244-A // Device for measuring level differences // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 313 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755244-A // Device for measuring level differences // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1765585.pdf | 312 kB | Shaun Ewing | Jun 24, 1930 00:00 |
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US-1765585-A // Set for measuring operating time of relays // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 312 kB | Shaun Ewing | Jun 24, 1930 00:00 | US-1765585-A // Set for measuring operating time of relays // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1659731.pdf | 312 kB | Shaun Ewing | Feb 21, 1928 00:00 |
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US-1659731-A // Insulator // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 312 kB | Shaun Ewing | Feb 21, 1928 00:00 | US-1659731-A // Insulator // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1765606.pdf | 311 kB | Shaun Ewing | Jun 24, 1930 00:00 |
|
US-1765606-A // Harmonic producer // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 311 kB | Shaun Ewing | Jun 24, 1930 00:00 | US-1765606-A // Harmonic producer // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1459005.pdf | 310 kB | Shaun Ewing | Jun 19, 1923 00:00 |
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US-1459005-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 310 kB | Shaun Ewing | Jun 19, 1923 00:00 | US-1459005-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1536116.pdf | 310 kB | Shaun Ewing | May 05, 1925 00:00 |
|
US-1536116-A // Sound reproducer // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 310 kB | Shaun Ewing | May 05, 1925 00:00 | US-1536116-A // Sound reproducer // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1555875.pdf | 310 kB | Shaun Ewing | Oct 06, 1925 00:00 |
|
US-1555875-A // Telegraph measuring system // Pierce Ralph E. // American Telephone & Telegraph | |||
| Version 1 (current) | 310 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555875-A // Telegraph measuring system // Pierce Ralph E. // American Telephone & Telegraph | ||||
| PDF File 1715475.pdf | 310 kB | Shaun Ewing | Jun 04, 1929 00:00 |
|
US-1715475-A // Electrical protective system // Shetzline Roy A. // American Telephone & Telegraph | |||
| Version 1 (current) | 310 kB | Shaun Ewing | Jun 04, 1929 00:00 | US-1715475-A // Electrical protective system // Shetzline Roy A. // American Telephone & Telegraph | ||||
| PDF File 1529786.pdf | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 |
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US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 | US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | ||||
| PDF File 1633625.pdf | 309 kB | Shaun Ewing | Jun 28, 1927 00:00 |
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US-1633625-A // Secrecy system // Rspenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Jun 28, 1927 00:00 | US-1633625-A // Secrecy system // Rspenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1733121.pdf | 308 kB | Shaun Ewing | Oct 29, 1929 00:00 |
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US-1733121-A // Telephone or other booth // Giddis George F. // American Telephone & Telegraph | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Oct 29, 1929 00:00 | US-1733121-A // Telephone or other booth // Giddis George F. // American Telephone & Telegraph | ||||
| PDF File 1721567.pdf | 308 kB | Shaun Ewing | Jul 23, 1929 00:00 |
|
US-1721567-A // Multiplex radio transmitting system // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Jul 23, 1929 00:00 | US-1721567-A // Multiplex radio transmitting system // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1596102.pdf | 307 kB | Shaun Ewing | Aug 17, 1926 00:00 |
|
US-1596102-A // High-frequency translating circuits // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 307 kB | Shaun Ewing | Aug 17, 1926 00:00 | US-1596102-A // High-frequency translating circuits // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1616491.pdf | 306 kB | Shaun Ewing | Feb 08, 1927 00:00 |
|
US-1616491-A // Headband for telephone receivers // Green Irving W. // American Telephone & Telegraph | |||
| Version 1 (current) | 306 kB | Shaun Ewing | Feb 08, 1927 00:00 | US-1616491-A // Headband for telephone receivers // Green Irving W. // American Telephone & Telegraph | ||||
| PDF File 1685145.pdf | 305 kB | Shaun Ewing | Sept 25, 1928 00:00 |
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US-1685145-A // Hook // Bartenbach Herman ; Freeman Albert E. // American Telephone & Telegraph | |||
| Version 1 (current) | 305 kB | Shaun Ewing | Sept 25, 1928 00:00 | US-1685145-A // Hook // Bartenbach Herman ; Freeman Albert E. // American Telephone & Telegraph |
