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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2117709.pdf | 488 kB | Shaun Ewing | May 17, 1938 00:00 |
|
US-2117709-A // Electron discharge device // Davisson Clinton J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 488 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117709-A // Electron discharge device // Davisson Clinton J. // Bell Telephone Labor Inc | ||||
| PDF File 2117708.pdf | 1.19 MB | Shaun Ewing | May 17, 1938 00:00 |
|
US-2117708-A // Circuit for controlling signal transmission in two-way signaling systems // Davis Kingsbury H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.19 MB | Shaun Ewing | May 17, 1938 00:00 | US-2117708-A // Circuit for controlling signal transmission in two-way signaling systems // Davis Kingsbury H. // Bell Telephone Labor Inc | ||||
| PDF File 2117705.pdf | 772 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117705-A // Teletypewriter system // Cramer Walter W. ; Cummings George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 772 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117705-A // Teletypewriter system // Cramer Walter W. ; Cummings George C. // Bell Telephone Labor Inc | ||||
| PDF File 2117702.pdf | 426 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117702-A // Switching mechanism // Burwell John A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 426 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117702-A // Switching mechanism // Burwell John A. // Bell Telephone Labor Inc | ||||
| PDF File 2117698.pdf | 672 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117698-A // Transmission system // Budenbom Horace T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 672 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117698-A // Transmission system // Budenbom Horace T. // Bell Telephone Labor Inc | ||||
| PDF File 2117692.pdf | 220 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117692-A // Battery box // Atkins George E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 220 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117692-A // Battery box // Atkins George E. // Bell Telephone Labor Inc | ||||
| PDF File 2117001.pdf | 674 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2117001-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | May 10, 1938 00:00 | US-2117001-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2116996.pdf | 553 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116996-A // Variable tuned circuits // Crawford Arthur B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116996-A // Variable tuned circuits // Crawford Arthur B. // Bell Telephone Labor Inc | ||||
| PDF File 2116600.pdf | 685 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116600-A // Electrical transmission control // Fisher Joseph R. ; Mallinckrodt Charles O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 685 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116600-A // Electrical transmission control // Fisher Joseph R. ; Mallinckrodt Charles O. // Bell Telephone Labor Inc | ||||
| PDF File 2116586.pdf | 705 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116586-A // Strip feeding mechanism // Stoller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 705 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116586-A // Strip feeding mechanism // Stoller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 2116580.pdf | 359 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116580-A // Coin collector electromagnet // Melick John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 359 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116580-A // Coin collector electromagnet // Melick John M. // Bell Telephone Labor Inc | ||||
| PDF File 2116562.pdf | 230 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116562-A // Soldering iron // Cruser Victor I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 230 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116562-A // Soldering iron // Cruser Victor I. // Bell Telephone Labor Inc | ||||
| PDF File 2116559.pdf | 652 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116559-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 652 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116559-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | ||||
| PDF File 2116558.pdf | 929 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116558-A // Signal control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 929 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116558-A // Signal control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2115836.pdf | 315 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115836-A // Electromagnetic switching device // Zupa Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 315 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115836-A // Electromagnetic switching device // Zupa Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2115828.pdf | 423 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | ||||
| PDF File 2115826.pdf | 1.10 MB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115826-A // Impedance transformer // Norton Edward L. ; Wick Ronald F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | May 03, 1938 00:00 | US-2115826-A // Impedance transformer // Norton Edward L. ; Wick Ronald F. // Bell Telephone Labor Inc | ||||
| PDF File 2115818.pdf | 853 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115818-A // Wave transmission network // Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 853 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115818-A // Wave transmission network // Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2115808.pdf | 566 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115808-A // Electrical recorder // Germanton Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 566 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115808-A // Electrical recorder // Germanton Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2115804.pdf | 221 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115804-A // Electromagnetic switch // Fondiller William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 221 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115804-A // Electromagnetic switch // Fondiller William // Bell Telephone Labor Inc |
