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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2697140.pdf | 1.60 MB | Shaun Ewing | Dec 14, 1954 00:00 |
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US-2697140-A // Electronic testing system // Cornell Warren A. ; Hall Nathan I. ; Powell Harold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.60 MB | Shaun Ewing | Dec 14, 1954 00:00 | US-2697140-A // Electronic testing system // Cornell Warren A. ; Hall Nathan I. ; Powell Harold E. // Bell Telephone Labor Inc | ||||
| PDF File 2642500.pdf | 1.59 MB | Shaun Ewing | Jun 16, 1953 00:00 |
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US-2642500-A // Voice frequency signaling circuit // Fritschi Walter W. ; Soffel Robert O. ; Weaver Allan // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Jun 16, 1953 00:00 | US-2642500-A // Voice frequency signaling circuit // Fritschi Walter W. ; Soffel Robert O. ; Weaver Allan // Bell Telephone Labor Inc | ||||
| PDF File 2580093.pdf | 1.59 MB | Shaun Ewing | Dec 25, 1951 00:00 |
|
US-2580093-A // Call data recording telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Dec 25, 1951 00:00 | US-2580093-A // Call data recording telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2694147.pdf | 1.59 MB | Shaun Ewing | Nov 09, 1954 00:00 |
|
US-2694147-A // Scanning antenna system // Feldman Carl B. H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Nov 09, 1954 00:00 | US-2694147-A // Scanning antenna system // Feldman Carl B. H. // Bell Telephone Labor Inc | ||||
| PDF File 2658186.pdf | 1.59 MB | Shaun Ewing | Nov 03, 1953 00:00 |
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US-2658186-A // Prismatic directional and object locating system // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Nov 03, 1953 00:00 | US-2658186-A // Prismatic directional and object locating system // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2701358.pdf | 1.58 MB | Shaun Ewing | Feb 01, 1955 00:00 |
|
US-2701358-A // Ground speed and distance meter // Jr. Stephen Doba, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.58 MB | Shaun Ewing | Feb 01, 1955 00:00 | US-2701358-A // Ground speed and distance meter // Jr. Stephen Doba, // Bell Telephone Labor Inc | ||||
| PDF File 2623114.pdf | 1.57 MB | Shaun Ewing | Dec 23, 1952 00:00 |
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US-2623114-A // Pulse counting and registering circuits // Low Frank K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.57 MB | Shaun Ewing | Dec 23, 1952 00:00 | US-2623114-A // Pulse counting and registering circuits // Low Frank K. // Bell Telephone Labor Inc | ||||
| PDF File 2653253.pdf | 1.57 MB | Shaun Ewing | Sept 22, 1953 00:00 |
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US-2653253-A // Power supply system // Langabeer Harvey T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.57 MB | Shaun Ewing | Sept 22, 1953 00:00 | US-2653253-A // Power supply system // Langabeer Harvey T. // Bell Telephone Labor Inc | ||||
| PDF File 2628283.pdf | 1.56 MB | Shaun Ewing | Feb 10, 1953 00:00 |
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US-2628283-A // Semiautomatic telephone switching system arranged for selective alternating current or direct current key pulsing // Mckim Burton // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Feb 10, 1953 00:00 | US-2628283-A // Semiautomatic telephone switching system arranged for selective alternating current or direct current key pulsing // Mckim Burton // Bell Telephone Labor Inc | ||||
| PDF File 2728906.pdf | 1.55 MB | Shaun Ewing | Dec 27, 1955 00:00 |
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US-2728906-A // Telegraph signal receiving system // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.55 MB | Shaun Ewing | Dec 27, 1955 00:00 | US-2728906-A // Telegraph signal receiving system // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2540839.pdf | 1.55 MB | Shaun Ewing | Feb 06, 1951 00:00 |
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US-2540839-A // Wave guide system // Southworth George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.55 MB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540839-A // Wave guide system // Southworth George C. // Bell Telephone Labor Inc | ||||
| PDF File 2676258.pdf | 1.55 MB | Shaun Ewing | Apr 20, 1954 00:00 |
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US-2676258-A // Harmonic crystal oscillator // Laidig John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.55 MB | Shaun Ewing | Apr 20, 1954 00:00 | US-2676258-A // Harmonic crystal oscillator // Laidig John F. // Bell Telephone Labor Inc | ||||
| PDF File 2619545.pdf | 1.54 MB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619545-A // Telephone calling line identification and recording system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.54 MB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619545-A // Telephone calling line identification and recording system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2608623.pdf | 1.53 MB | Shaun Ewing | Aug 26, 1952 00:00 |
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US-2608623-A // Wave transmission amplifier // Cutler Cassius C. ; Mathews Warren E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | Aug 26, 1952 00:00 | US-2608623-A // Wave transmission amplifier // Cutler Cassius C. ; Mathews Warren E. // Bell Telephone Labor Inc | ||||
| PDF File 2578353.pdf | 1.53 MB | Shaun Ewing | Dec 11, 1951 00:00 |
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US-2578353-A // Electrical control device // Hampton Leon N. ; Mesch Orwar S. A. ; Obst Charles V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.53 MB | Shaun Ewing | Dec 11, 1951 00:00 | US-2578353-A // Electrical control device // Hampton Leon N. ; Mesch Orwar S. A. ; Obst Charles V. // Bell Telephone Labor Inc | ||||
| PDF File 2641757.pdf | 1.52 MB | Shaun Ewing | Jun 09, 1953 00:00 |
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US-2641757-A // Automatic multichannel selection // Hoth Daniel F. ; Soffel Robert O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Jun 09, 1953 00:00 | US-2641757-A // Automatic multichannel selection // Hoth Daniel F. ; Soffel Robert O. // Bell Telephone Labor Inc | ||||
| PDF File 2593330.pdf | 1.51 MB | Shaun Ewing | Apr 15, 1952 00:00 |
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US-2593330-A // Variable frequency relaxation oscillator // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Apr 15, 1952 00:00 | US-2593330-A // Variable frequency relaxation oscillator // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2595691.pdf | 1.51 MB | Shaun Ewing | May 06, 1952 00:00 |
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US-2595691-A // Signal responsive circuit // Morton Jack A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | May 06, 1952 00:00 | US-2595691-A // Signal responsive circuit // Morton Jack A. // Bell Telephone Labor Inc | ||||
| PDF File 2550909.pdf | 1.51 MB | Shaun Ewing | May 01, 1951 00:00 |
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US-2550909-A // Recording system // Busch Aloysius J. ; Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | May 01, 1951 00:00 | US-2550909-A // Recording system // Busch Aloysius J. ; Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2558571.pdf | 1.51 MB | Shaun Ewing | Jun 26, 1951 00:00 |
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US-2558571-A // Operator controlled coin collecting and refunding means for dial telephone systems // Lamberty Frederick R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Jun 26, 1951 00:00 | US-2558571-A // Operator controlled coin collecting and refunding means for dial telephone systems // Lamberty Frederick R. // Bell Telephone Labor Inc |
