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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1921187.pdf | 463 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921187-A // Ultra-short-wave system // Hollmann Hans Erich // American Telephone & Telegraph | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921187-A // Ultra-short-wave system // Hollmann Hans Erich // American Telephone & Telegraph | ||||
| PDF File 1921079.pdf | 490 kB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921079-A // Telegraph system // Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 490 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921079-A // Telegraph system // Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1921072.pdf | 1.04 MB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921072-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921072-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | ||||
| PDF File 1921071.pdf | 992 kB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921071-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921071-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | ||||
| PDF File 1921063.pdf | 983 kB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921063-A // Treatment of echoes in transmission systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 983 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921063-A // Treatment of echoes in transmission systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1920454.pdf | 682 kB | Shaun Ewing | Aug 01, 1933 00:00 |
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US-1920454-A // Signal distortion indicating device // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 682 kB | Shaun Ewing | Aug 01, 1933 00:00 | US-1920454-A // Signal distortion indicating device // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1920453.pdf | 2.11 MB | Shaun Ewing | Aug 01, 1933 00:00 |
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US-1920453-A // Telegraphic intercommunicating system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.11 MB | Shaun Ewing | Aug 01, 1933 00:00 | US-1920453-A // Telegraphic intercommunicating system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1919309.pdf | 1.02 MB | Shaun Ewing | Jul 25, 1933 00:00 |
|
US-1919309-A // Apparatus and method for radio transmission and reception // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919309-A // Apparatus and method for radio transmission and reception // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1919300.pdf | 338 kB | Shaun Ewing | Jul 25, 1933 00:00 |
|
US-1919300-A // Molding // Lewis Edwin // American Telephone & Telegraph | |||
| Version 1 (current) | 338 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919300-A // Molding // Lewis Edwin // American Telephone & Telegraph | ||||
| PDF File 1918393.pdf | 863 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918393-A // Amplifier of alternating currents // Holden William Henry Towne // American Telephone & Telegraph | |||
| Version 1 (current) | 863 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918393-A // Amplifier of alternating currents // Holden William Henry Towne // American Telephone & Telegraph | ||||
| PDF File 1918390.pdf | 612 kB | Shaun Ewing | Jul 18, 1933 00:00 |
|
US-1918390-A // Transmission control // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 612 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918390-A // Transmission control // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1917960.pdf | 1.06 MB | Shaun Ewing | Jul 11, 1933 00:00 |
|
US-1917960-A // Four wire circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917960-A // Four wire circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1917453.pdf | 288 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917453-A // System for producing high voltage direct currents // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 288 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917453-A // System for producing high voltage direct currents // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1917418.pdf | 371 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917418-A // Electric delay circuits // Almquist Milton L. ; Thompson Albert C. // American Telephone & Telegraph | |||
| Version 1 (current) | 371 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917418-A // Electric delay circuits // Almquist Milton L. ; Thompson Albert C. // American Telephone & Telegraph | ||||
| PDF File 1916316.pdf | 591 kB | Shaun Ewing | Jul 04, 1933 00:00 |
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US-1916316-A // Battery control circuit // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 591 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1916316-A // Battery control circuit // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1916304.pdf | 486 kB | Shaun Ewing | Jul 04, 1933 00:00 |
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US-1916304-A // Testing system // Edwards Paul G. // American Telephone & Telegraph | |||
| Version 1 (current) | 486 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1916304-A // Testing system // Edwards Paul G. // American Telephone & Telegraph | ||||
| PDF File 1915442.pdf | 970 kB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915442-A // Cable conductor system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 970 kB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915442-A // Cable conductor system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1915441.pdf | 313 kB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915441-A // System for determining the gain of vacuum tubes // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 313 kB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915441-A // System for determining the gain of vacuum tubes // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1915440.pdf | 471 kB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915440-A // Regenerative amplifier // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915440-A // Regenerative amplifier // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1915423.pdf | 284 kB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915423-A // Cable bender // Kellems Edgar E. // American Telephone & Telegraph | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915423-A // Cable bender // Kellems Edgar E. // American Telephone & Telegraph |
