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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1556319.pdf | 851 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1556319-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 851 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1556319-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1556318.pdf | 691 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1556318-A // High-frequency multiplex signaling system // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 691 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1556318-A // High-frequency multiplex signaling system // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1556311.pdf | 440 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1556311-A // Signaling system // Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 440 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1556311-A // Signaling system // Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1555917.pdf | 316 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1555917-A // Telegraphy // Fell John M. // American Telephone & Telegraph | |||
| Version 1 (current) | 316 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555917-A // Telegraphy // Fell John M. // American Telephone & Telegraph | ||||
| PDF File 1555916.pdf | 657 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1555916-A // Frequency-translating system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 657 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555916-A // Frequency-translating system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1555893.pdf | 269 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1555893-A // Alternating-current relay // Thompson Elmer O. // American Telephone & Telegraph | |||
| Version 1 (current) | 269 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555893-A // Alternating-current relay // Thompson Elmer O. // American Telephone & Telegraph | ||||
| PDF File 1555875.pdf | 310 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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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 1555870.pdf | 315 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1555870-A // Telegraph repeater // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 315 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555870-A // Telegraph repeater // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1555041.pdf | 824 kB | Shaun Ewing | Sept 29, 1925 00:00 |
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US-1555041-A // Distortion-measuring system // Vernam Gilbert S. ; Perry Donald B. ; Cory Samuel I. // American Telephone & Telegraph | |||
| Version 1 (current) | 824 kB | Shaun Ewing | Sept 29, 1925 00:00 | US-1555041-A // Distortion-measuring system // Vernam Gilbert S. ; Perry Donald B. ; Cory Samuel I. // American Telephone & Telegraph | ||||
| PDF File 1555037.pdf | 268 kB | Shaun Ewing | Sept 29, 1925 00:00 |
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US-1555037-A // Resistance amplifier // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 268 kB | Shaun Ewing | Sept 29, 1925 00:00 | US-1555037-A // Resistance amplifier // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1555002.pdf | 1.24 MB | Shaun Ewing | Sept 29, 1925 00:00 |
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US-1555002-A // Telephone-exchange system // Gray Ernest A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Sept 29, 1925 00:00 | US-1555002-A // Telephone-exchange system // Gray Ernest A. // American Telephone & Telegraph | ||||
| PDF File 1555001.pdf | 1.47 MB | Shaun Ewing | Sept 29, 1925 00:00 |
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US-1555001-A // Telephone signaling system // Gray Ernest A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Sept 29, 1925 00:00 | US-1555001-A // Telephone signaling system // Gray Ernest A. // American Telephone & Telegraph | ||||
| PDF File 1554290.pdf | 294 kB | Shaun Ewing | Sept 22, 1925 00:00 |
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US-1554290-A // Carrier telegraph system // Parker Ralzemond D. ; Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 294 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554290-A // Carrier telegraph system // Parker Ralzemond D. ; Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1554266.pdf | 321 kB | Shaun Ewing | Sept 22, 1925 00:00 |
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US-1554266-A // Detecting circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554266-A // Detecting circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1554190.pdf | 594 kB | Shaun Ewing | Sept 22, 1925 00:00 |
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US-1554190-A // Detecting circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 594 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554190-A // Detecting circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1554189.pdf | 518 kB | Shaun Ewing | Sept 22, 1925 00:00 |
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US-1554189-A // Equalization of carrier transmission // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554189-A // Equalization of carrier transmission // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1554188.pdf | 601 kB | Shaun Ewing | Sept 22, 1925 00:00 |
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US-1554188-A // High-frequency multiplex-signaling system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 601 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554188-A // High-frequency multiplex-signaling system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1553489.pdf | 1.26 MB | Shaun Ewing | Sept 15, 1925 00:00 |
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US-1553489-A // Telephone system // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553489-A // Telephone system // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | ||||
| PDF File 1553465.pdf | 336 kB | Shaun Ewing | Sept 15, 1925 00:00 |
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US-1553465-A // Testing apparatus // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 336 kB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553465-A // Testing apparatus // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1553454.pdf | 925 kB | Shaun Ewing | Sept 15, 1925 00:00 |
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US-1553454-A // Radio repeating system // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 925 kB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553454-A // Radio repeating system // Martin De Loss K. // American Telephone & Telegraph |
