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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2144866.pdf | 700 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2144866-A // Telephone system // Allen Louis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 700 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2144866-A // Telephone system // Allen Louis M. // Bell Telephone Labor Inc | ||||
| PDF File 2144867.pdf | 975 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2144867-A // Telephone system // Atkins George E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 975 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2144867-A // Telephone system // Atkins George E. // Bell Telephone Labor Inc | ||||
| PDF File 2144872.pdf | 124 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2144872-A // Insulator // Cruser Victor I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 124 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2144872-A // Insulator // Cruser Victor I. // Bell Telephone Labor Inc | ||||
| PDF File 2144873.pdf | 312 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2144873-A // Time measuring system // Dimond Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 312 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2144873-A // Time measuring system // Dimond Thomas L. // Bell Telephone Labor Inc | ||||
| PDF File 2145024.pdf | 1022 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2145024-A // Directive antenna // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1022 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2145024-A // Directive antenna // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2145042.pdf | 874 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2145042-A // Timing device // Dimond Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 874 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2145042-A // Timing device // Dimond Thomas L. // Bell Telephone Labor Inc | ||||
| PDF File 2145053.pdf | 390 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2145053-A // Signaling system // Meszar John // Bell Telephone Labor Inc | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2145053-A // Signaling system // Meszar John // Bell Telephone Labor Inc | ||||
| PDF File 2145079.pdf | 4.21 MB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2145079-A // Telephone system // Gibson Earl S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.21 MB | Shaun Ewing | Jan 24, 1939 00:00 | US-2145079-A // Telephone system // Gibson Earl S. // Bell Telephone Labor Inc | ||||
| PDF File 2146053.pdf | 294 kB | Shaun Ewing | Feb 07, 1939 00:00 |
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US-2146053-A // Harmonic producer system // Campbell Mark E. ; West Julian M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 294 kB | Shaun Ewing | Feb 07, 1939 00:00 | US-2146053-A // Harmonic producer system // Campbell Mark E. ; West Julian M. // Bell Telephone Labor Inc | ||||
| PDF File 2146091.pdf | 453 kB | Shaun Ewing | Feb 07, 1939 00:00 |
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US-2146091-A // Harmonic producing apparatus // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Feb 07, 1939 00:00 | US-2146091-A // Harmonic producing apparatus // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2146824.pdf | 634 kB | Shaun Ewing | Feb 14, 1939 00:00 |
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US-2146824-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 634 kB | Shaun Ewing | Feb 14, 1939 00:00 | US-2146824-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2147688.pdf | 1.17 MB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147688-A // Magnetic impulse storing device // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147688-A // Magnetic impulse storing device // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 2147689.pdf | 328 kB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147689-A // Method and apparatus for heating dielectric materials // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 328 kB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147689-A // Method and apparatus for heating dielectric materials // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2147690.pdf | 888 kB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147690-A // Telegraph repeater // Cramer Walter W. ; Cummings George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 888 kB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147690-A // Telegraph repeater // Cramer Walter W. ; Cummings George C. // Bell Telephone Labor Inc | ||||
| PDF File 2147710.pdf | 1.13 MB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147710-A // Call transmitter // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147710-A // Call transmitter // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 2147712.pdf | 742 kB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147712-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 742 kB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147712-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2147717.pdf | 1.93 MB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147717-A // Guided wave transmission // Schelkunoff Sergel A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.93 MB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147717-A // Guided wave transmission // Schelkunoff Sergel A. // Bell Telephone Labor Inc | ||||
| PDF File 2147720.pdf | 1.26 MB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147720-A // Telegraphic exchange circuit // Singer Fred J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147720-A // Telegraphic exchange circuit // Singer Fred J. // Bell Telephone Labor Inc | ||||
| PDF File 2147728.pdf | 611 kB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147728-A // Phase changer // Wintringham William T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147728-A // Phase changer // Wintringham William T. // Bell Telephone Labor Inc | ||||
| PDF File 2147729.pdf | 435 kB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147729-A // Electric metering device // Wurmser Alphons V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 435 kB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147729-A // Electric metering device // Wurmser Alphons V. // Bell Telephone Labor Inc |
