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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2194543.pdf | 699 kB | Shaun Ewing | Mar 26, 1940 00:00 |
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US-2194543-A // High frequency network structure // Curtis Harold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 699 kB | Shaun Ewing | Mar 26, 1940 00:00 | US-2194543-A // High frequency network structure // Curtis Harold E. // Bell Telephone Labor Inc | ||||
| PDF File 2194539.pdf | 662 kB | Shaun Ewing | Mar 26, 1940 00:00 |
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US-2194539-A // Piezoelectric crystal impedance element // Barry Joseph F. ; Och Henry G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 662 kB | Shaun Ewing | Mar 26, 1940 00:00 | US-2194539-A // Piezoelectric crystal impedance element // Barry Joseph F. ; Och Henry G. // Bell Telephone Labor Inc | ||||
| PDF File 2194306.pdf | 520 kB | Shaun Ewing | Mar 19, 1940 00:00 |
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US-2194306-A // Telephone calling dial // Huxham Trevor S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Mar 19, 1940 00:00 | US-2194306-A // Telephone calling dial // Huxham Trevor S. // Bell Telephone Labor Inc | ||||
| PDF File 2194298.pdf | 2.13 MB | Shaun Ewing | Mar 19, 1940 00:00 |
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US-2194298-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.13 MB | Shaun Ewing | Mar 19, 1940 00:00 | US-2194298-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2194296.pdf | 445 kB | Shaun Ewing | Mar 19, 1940 00:00 |
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US-2194296-A // Selective switching device // Dickieson Alton C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Mar 19, 1940 00:00 | US-2194296-A // Selective switching device // Dickieson Alton C. // Bell Telephone Labor Inc | ||||
| PDF File 2194295.pdf | 226 kB | Shaun Ewing | Mar 19, 1940 00:00 |
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US-2194295-A // Wood filler // Clarke Walter J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 226 kB | Shaun Ewing | Mar 19, 1940 00:00 | US-2194295-A // Wood filler // Clarke Walter J. // Bell Telephone Labor Inc | ||||
| PDF File 2193855.pdf | 228 kB | Shaun Ewing | Mar 19, 1940 00:00 |
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US-2193855-A // Ringing system // Blount Frank E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Mar 19, 1940 00:00 | US-2193855-A // Ringing system // Blount Frank E. // Bell Telephone Labor Inc | ||||
| PDF File 2193579.pdf | 1.07 MB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193579-A // Electron discharge apparatus // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193579-A // Electron discharge apparatus // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2193578.pdf | 783 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193578-A // Electron discharge apparatus // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193578-A // Electron discharge apparatus // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2193450.pdf | 240 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193450-A // Wire joining means // Dixon John B. ; Gordon Chester S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193450-A // Wire joining means // Dixon John B. ; Gordon Chester S. // Bell Telephone Labor Inc | ||||
| PDF File 2193427.pdf | 721 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193427-A // Telephone system // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 721 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193427-A // Telephone system // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 2193093.pdf | 536 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193093-A // Alarm system // Gardner Leland A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 536 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193093-A // Alarm system // Gardner Leland A. // Bell Telephone Labor Inc | ||||
| PDF File 2193087.pdf | 591 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2193087-A // Method and apparatus for testing receivers // Brown John T. L. ; Holman Erwin W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 591 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2193087-A // Method and apparatus for testing receivers // Brown John T. L. ; Holman Erwin W. // Bell Telephone Labor Inc | ||||
| PDF File 2192986.pdf | 737 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2192986-A // Variable condenser // Rodgers Karl F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 737 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2192986-A // Variable condenser // Rodgers Karl F. // Bell Telephone Labor Inc | ||||
| PDF File 2192961.pdf | 544 kB | Shaun Ewing | Mar 12, 1940 00:00 |
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US-2192961-A // Signaling system // Branson David E. ; Watson Edward F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Mar 12, 1940 00:00 | US-2192961-A // Signaling system // Branson David E. ; Watson Edward F. // Bell Telephone Labor Inc | ||||
| PDF File 2192025.pdf | 3.95 MB | Shaun Ewing | Feb 27, 1940 00:00 |
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US-2192025-A // Telephone system // Busch Aloysius J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.95 MB | Shaun Ewing | Feb 27, 1940 00:00 | US-2192025-A // Telephone system // Busch Aloysius J. // Bell Telephone Labor Inc | ||||
| PDF File 2191913.pdf | 999 kB | Shaun Ewing | Feb 27, 1940 00:00 |
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US-2191913-A // Telephone system // Lewis Benjamin F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 999 kB | Shaun Ewing | Feb 27, 1940 00:00 | US-2191913-A // Telephone system // Lewis Benjamin F. // Bell Telephone Labor Inc | ||||
| PDF File 2191798.pdf | 487 kB | Shaun Ewing | Feb 27, 1940 00:00 |
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US-2191798-A // Printing telegraph counting apparatus // Mccann Thomas A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 487 kB | Shaun Ewing | Feb 27, 1940 00:00 | US-2191798-A // Printing telegraph counting apparatus // Mccann Thomas A. // Bell Telephone Labor Inc | ||||
| PDF File 2191637.pdf | 1.17 MB | Shaun Ewing | Feb 27, 1940 00:00 |
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US-2191637-A // Frame support // Wier Anthony J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Feb 27, 1940 00:00 | US-2191637-A // Frame support // Wier Anthony J. // Bell Telephone Labor Inc | ||||
| PDF File 2191624.pdf | 273 kB | Shaun Ewing | Feb 27, 1940 00:00 |
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US-2191624-A // Wiping solder // Phipps George S. ; Schumacher Earle E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 273 kB | Shaun Ewing | Feb 27, 1940 00:00 | US-2191624-A // Wiping solder // Phipps George S. ; Schumacher Earle E. // Bell Telephone Labor Inc |
