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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2119239.pdf | 7.11 MB | Shaun Ewing | May 31, 1938 00:00 |
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US-2119239-A // Telephone system // Meszar John ; Wiese Floyd M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 7.11 MB | Shaun Ewing | May 31, 1938 00:00 | US-2119239-A // Telephone system // Meszar John ; Wiese Floyd M. // Bell Telephone Labor Inc | ||||
| PDF File 2119212.pdf | 741 kB | Shaun Ewing | May 31, 1938 00:00 |
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US-2119212-A // Volume indicator // Kahl Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 741 kB | Shaun Ewing | May 31, 1938 00:00 | US-2119212-A // Volume indicator // Kahl Henry // Bell Telephone Labor Inc | ||||
| PDF File 2119211.pdf | 484 kB | Shaun Ewing | May 31, 1938 00:00 |
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US-2119211-A // Telephone system // Holden William H. T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 484 kB | Shaun Ewing | May 31, 1938 00:00 | US-2119211-A // Telephone system // Holden William H. T. // Bell Telephone Labor Inc | ||||
| PDF File 2119209.pdf | 3.63 MB | Shaun Ewing | May 31, 1938 00:00 |
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US-2119209-A // Telephone system // Hall Oliver C. ; Toomey John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.63 MB | Shaun Ewing | May 31, 1938 00:00 | US-2119209-A // Telephone system // Hall Oliver C. ; Toomey John F. // Bell Telephone Labor Inc | ||||
| PDF File 2118952.pdf | 352 kB | Shaun Ewing | May 31, 1938 00:00 |
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US-2118952-A // Loaded transmission line // Strieby Maurice E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 352 kB | Shaun Ewing | May 31, 1938 00:00 | US-2118952-A // Loaded transmission line // Strieby Maurice E. // Bell Telephone Labor Inc | ||||
| PDF File 2118935.pdf | 477 kB | Shaun Ewing | May 31, 1938 00:00 |
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US-2118935-A // Switch mechanism // Magrath Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 477 kB | Shaun Ewing | May 31, 1938 00:00 | US-2118935-A // Switch mechanism // Magrath Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2118931.pdf | 379 kB | Shaun Ewing | May 31, 1938 00:00 |
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US-2118931-A // Space discharge tube circuit // Llewellyn Frederick B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 379 kB | Shaun Ewing | May 31, 1938 00:00 | US-2118931-A // Space discharge tube circuit // Llewellyn Frederick B. // Bell Telephone Labor Inc | ||||
| PDF File 2118919.pdf | 1.21 MB | Shaun Ewing | May 31, 1938 00:00 |
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US-2118919-A // Testing arrangement for electron discharge devices and methods of operating same // Gannett Danforth K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | May 31, 1938 00:00 | US-2118919-A // Testing arrangement for electron discharge devices and methods of operating same // Gannett Danforth K. // Bell Telephone Labor Inc | ||||
| PDF File 2118258.pdf | 465 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118258-A // Relay mechanism // Magrath Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 465 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118258-A // Relay mechanism // Magrath Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2118247.pdf | 545 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118247-A // Message registration checking system // Keckler Charles W. ; Osten-Sacken Irving C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 545 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118247-A // Message registration checking system // Keckler Charles W. ; Osten-Sacken Irving C. // Bell Telephone Labor Inc | ||||
| PDF File 2118246.pdf | 337 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118246-A // Regulating system // Jutson Robert P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 337 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118246-A // Regulating system // Jutson Robert P. // Bell Telephone Labor Inc | ||||
| PDF File 2118179.pdf | 419 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118179-A // Telegraphone // Ellis William C. ; Greiner Earl S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118179-A // Telegraphone // Ellis William C. ; Greiner Earl S. // Bell Telephone Labor Inc | ||||
| PDF File 2118175.pdf | 1005 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118175-A // Control circuits // Jr. Stephen Doba, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1005 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118175-A // Control circuits // Jr. Stephen Doba, // Bell Telephone Labor Inc | ||||
| PDF File 2118161.pdf | 1.37 MB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118161-A // Receiving system for frequency modulated waves // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.37 MB | Shaun Ewing | May 24, 1938 00:00 | US-2118161-A // Receiving system for frequency modulated waves // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2118156.pdf | 1.54 MB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118156-A // Impulse operated system employing glow discharge tubes // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.54 MB | Shaun Ewing | May 24, 1938 00:00 | US-2118156-A // Impulse operated system employing glow discharge tubes // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 2117843.pdf | 347 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117843-A // Frequency selective circuits // Green Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 347 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117843-A // Frequency selective circuits // Green Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 2117835.pdf | 527 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117835-A // Telephone signaling system // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 527 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117835-A // Telephone signaling system // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 2117752.pdf | 606 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117752-A // Harmonic producer // Wrathall Lelshman R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 606 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117752-A // Harmonic producer // Wrathall Lelshman R. // Bell Telephone Labor Inc | ||||
| PDF File 2117739.pdf | 497 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117739-A // Signaling system // Miller Ralph L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117739-A // Signaling system // Miller Ralph L. // Bell Telephone Labor Inc | ||||
| PDF File 2117723.pdf | 656 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117723-A // Telegraph repeater // Hysko John L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 656 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117723-A // Telegraph repeater // Hysko John L. // Bell Telephone Labor Inc |
