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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2522521.pdf | 540 kB | Shaun Ewing | Sept 19, 1950 00:00 |
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US-2522521-A // Thermal transistor microphone // Kock Winston E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 540 kB | Shaun Ewing | Sept 19, 1950 00:00 | US-2522521-A // Thermal transistor microphone // Kock Winston E. // Bell Telephone Labor Inc | ||||
| PDF File 2522530.pdf | 321 kB | Shaun Ewing | Sept 19, 1950 00:00 |
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US-2522530-A // Electroacoustic transducer // Miner Russell C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Sept 19, 1950 00:00 | US-2522530-A // Electroacoustic transducer // Miner Russell C. // Bell Telephone Labor Inc | ||||
| PDF File 2522539.pdf | 1.59 MB | Shaun Ewing | Sept 19, 1950 00:00 |
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US-2522539-A // Frequency control for synthesizing systems // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Sept 19, 1950 00:00 | US-2522539-A // Frequency control for synthesizing systems // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 2522946.pdf | 2.27 MB | Shaun Ewing | Sept 19, 1950 00:00 |
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US-2522946-A // Electrical control circuit for accounting system devices // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.27 MB | Shaun Ewing | Sept 19, 1950 00:00 | US-2522946-A // Electrical control circuit for accounting system devices // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 2523360.pdf | 495 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523360-A // Electromagnetic relay // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 495 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523360-A // Electromagnetic relay // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2523365.pdf | 1.62 MB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523365-A // Testing system for cathode-ray telephone switching apparatus // Gross Leo // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.62 MB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523365-A // Testing system for cathode-ray telephone switching apparatus // Gross Leo // Bell Telephone Labor Inc | ||||
| PDF File 2523366.pdf | 741 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523366-A // Mercury type relay // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 741 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523366-A // Mercury type relay // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2523398.pdf | 1.72 MB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523398-A // Radio wave transmission // Southworth George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.72 MB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523398-A // Radio wave transmission // Southworth George C. // Bell Telephone Labor Inc | ||||
| PDF File 2523408.pdf | 543 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523408-A // Control mechanism // Williford Oscar H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 543 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523408-A // Control mechanism // Williford Oscar H. // Bell Telephone Labor Inc | ||||
| PDF File 2523717.pdf | 835 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523717-A // Correction of distortion in telegraph signals // Pfleger Kenneth W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 835 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523717-A // Correction of distortion in telegraph signals // Pfleger Kenneth W. // Bell Telephone Labor Inc | ||||
| PDF File 2523748.pdf | 2.42 MB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523748-A // Carrier telegraph system // Wilson Albert // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.42 MB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523748-A // Carrier telegraph system // Wilson Albert // Bell Telephone Labor Inc | ||||
| PDF File 2523841.pdf | 368 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523841-A // Wave guide coupler // Nordsieck Arnold T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 368 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523841-A // Wave guide coupler // Nordsieck Arnold T. // Bell Telephone Labor Inc | ||||
| PDF File 2523903.pdf | 971 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523903-A // Jig // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 971 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523903-A // Jig // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2523904.pdf | 938 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523904-A // Record sensing and translating device // Hansen Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 938 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523904-A // Record sensing and translating device // Hansen Harry // Bell Telephone Labor Inc | ||||
| PDF File 2524033.pdf | 956 kB | Shaun Ewing | Oct 03, 1950 00:00 |
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US-2524033-A // Three-electrode circuit element utilizing semiconductive materials // Bardeen John // Bell Telephone Labor Inc | |||
| Version 1 (current) | 956 kB | Shaun Ewing | Oct 03, 1950 00:00 | US-2524033-A // Three-electrode circuit element utilizing semiconductive materials // Bardeen John // Bell Telephone Labor Inc | ||||
| PDF File 2524034.pdf | 506 kB | Shaun Ewing | Oct 03, 1950 00:00 |
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US-2524034-A // Three-electrode circuit element utilizing semiconductor materials // Brattain Walter H. ; Gibney Robert B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 506 kB | Shaun Ewing | Oct 03, 1950 00:00 | US-2524034-A // Three-electrode circuit element utilizing semiconductor materials // Brattain Walter H. ; Gibney Robert B. // Bell Telephone Labor Inc | ||||
| PDF File 2526551.pdf | 591 kB | Shaun Ewing | Oct 17, 1950 00:00 |
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US-2526551-A // Delayed-action pulse repeater // Gano Alfred S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 591 kB | Shaun Ewing | Oct 17, 1950 00:00 | US-2526551-A // Delayed-action pulse repeater // Gano Alfred S. // Bell Telephone Labor Inc | ||||
| PDF File 2526573.pdf | 496 kB | Shaun Ewing | Oct 17, 1950 00:00 |
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US-2526573-A // Frequency selective system // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Oct 17, 1950 00:00 | US-2526573-A // Frequency selective system // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2526574.pdf | 534 kB | Shaun Ewing | Oct 17, 1950 00:00 |
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US-2526574-A // Secondary emitter // Mendenhall Hallam E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Oct 17, 1950 00:00 | US-2526574-A // Secondary emitter // Mendenhall Hallam E. // Bell Telephone Labor Inc | ||||
| PDF File 2526579.pdf | 409 kB | Shaun Ewing | Oct 17, 1950 00:00 |
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US-2526579-A // Variable reactor // Ring Douglas H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 409 kB | Shaun Ewing | Oct 17, 1950 00:00 | US-2526579-A // Variable reactor // Ring Douglas H. // Bell Telephone Labor Inc |
