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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2019484.pdf | 551 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019484-A // Electron discharge device // Clark James E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019484-A // Electron discharge device // Clark James E. // Bell Telephone Labor Inc | ||||
| PDF File 2218328.pdf | 550 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218328-A // Telephone set // Curran Stanley T. ; Kuhn John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218328-A // Telephone set // Curran Stanley T. ; Kuhn John J. // Bell Telephone Labor Inc | ||||
| PDF File 2056284.pdf | 550 kB | Shaun Ewing | Oct 06, 1936 00:00 |
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US-2056284-A // Signaling method and apparatus // Maccoll Le Roy A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Oct 06, 1936 00:00 | US-2056284-A // Signaling method and apparatus // Maccoll Le Roy A. // Bell Telephone Labor Inc | ||||
| PDF File 1809828.pdf | 549 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1809828-A // Telephone transmission // Buckley Oliver E. ; Hartley Ralph V. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1809828-A // Telephone transmission // Buckley Oliver E. ; Hartley Ralph V. L. // Bell Telephone Labor Inc | ||||
| PDF File 2130499.pdf | 549 kB | Shaun Ewing | Sept 20, 1938 00:00 |
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US-2130499-A // Relay // Knowlton Clarence S. ; Spicer Hobart M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Sept 20, 1938 00:00 | US-2130499-A // Relay // Knowlton Clarence S. ; Spicer Hobart M. // Bell Telephone Labor Inc | ||||
| PDF File 2218711.pdf | 549 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218711-A // Electrical switching device // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218711-A // Electrical switching device // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2067518.pdf | 548 kB | Shaun Ewing | Jan 12, 1937 00:00 |
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US-2067518-A // Telephone system // Carpenter Warren W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jan 12, 1937 00:00 | US-2067518-A // Telephone system // Carpenter Warren W. // Bell Telephone Labor Inc | ||||
| PDF File 1799223.pdf | 548 kB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799223-A // Party-line message-register system // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799223-A // Party-line message-register system // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1890454.pdf | 548 kB | Shaun Ewing | Dec 13, 1932 00:00 |
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US-1890454-A // Automatic gain control // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Dec 13, 1932 00:00 | US-1890454-A // Automatic gain control // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 1841125.pdf | 548 kB | Shaun Ewing | Jan 12, 1932 00:00 |
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US-1841125-A // Coin collection apparatus // Hoyt Frederick A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1841125-A // Coin collection apparatus // Hoyt Frederick A. // Bell Telephone Labor Inc | ||||
| PDF File 1921430.pdf | 548 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921430-A // Electromagnetic switching device // Reynolds John N. ; Dobbin Henry F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921430-A // Electromagnetic switching device // Reynolds John N. ; Dobbin Henry F. // Bell Telephone Labor Inc | ||||
| PDF File 2200741.pdf | 548 kB | Shaun Ewing | May 14, 1940 00:00 |
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US-2200741-A // Electrostatic recording and reproducing // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | May 14, 1940 00:00 | US-2200741-A // Electrostatic recording and reproducing // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2207940.pdf | 548 kB | Shaun Ewing | Jul 16, 1940 00:00 |
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US-2207940-A // Biasing potential supply circuit // Norton Frank R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jul 16, 1940 00:00 | US-2207940-A // Biasing potential supply circuit // Norton Frank R. // Bell Telephone Labor Inc | ||||
| PDF File 1864076.pdf | 548 kB | Shaun Ewing | Jun 21, 1932 00:00 |
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US-1864076-A // High frequency furnace // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jun 21, 1932 00:00 | US-1864076-A // High frequency furnace // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 1968460.pdf | 547 kB | Shaun Ewing | Jul 31, 1934 00:00 |
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US-1968460-A // Noise suppression circuit // Llewellyn Frederick B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Jul 31, 1934 00:00 | US-1968460-A // Noise suppression circuit // Llewellyn Frederick B. // Bell Telephone Labor Inc | ||||
| PDF File 2061255.pdf | 547 kB | Shaun Ewing | Nov 17, 1936 00:00 |
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US-2061255-A // Electric discharge device // Jr. George H. Rockwood, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Nov 17, 1936 00:00 | US-2061255-A // Electric discharge device // Jr. George H. Rockwood, // Bell Telephone Labor Inc | ||||
| PDF File 2156630.pdf | 547 kB | Shaun Ewing | May 02, 1939 00:00 |
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US-2156630-A // Timing circuits // Knowlton Clarence S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | May 02, 1939 00:00 | US-2156630-A // Timing circuits // Knowlton Clarence S. // Bell Telephone Labor Inc | ||||
| PDF File 1917013.pdf | 547 kB | Shaun Ewing | Jul 04, 1933 00:00 |
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US-1917013-A // Sound translating device // Bostwick Lee G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1917013-A // Sound translating device // Bostwick Lee G. // Bell Telephone Labor Inc | ||||
| PDF File 2082091.pdf | 547 kB | Shaun Ewing | Jun 01, 1937 00:00 |
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US-2082091-A // Control knob // Jr. William J. Adams, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Jun 01, 1937 00:00 | US-2082091-A // Control knob // Jr. William J. Adams, // Bell Telephone Labor Inc | ||||
| PDF File 2217769.pdf | 547 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2217769-A // Signaling system // Price Arnold F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2217769-A // Signaling system // Price Arnold F. // Bell Telephone Labor Inc |
