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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2024585.pdf | 462 kB | Shaun Ewing | Dec 17, 1935 00:00 |
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US-2024585-A // Manufacture of electron discharge devices // Laico Joseph P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 462 kB | Shaun Ewing | Dec 17, 1935 00:00 | US-2024585-A // Manufacture of electron discharge devices // Laico Joseph P. // Bell Telephone Labor Inc | ||||
| PDF File 2170812.pdf | 461 kB | Shaun Ewing | Aug 29, 1939 00:00 |
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US-2170812-A // Frequency modulation // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 461 kB | Shaun Ewing | Aug 29, 1939 00:00 | US-2170812-A // Frequency modulation // Lange Owen E. De // Bell Telephone Labor Inc | ||||
| PDF File 1907114.pdf | 460 kB | Shaun Ewing | May 02, 1933 00:00 |
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US-1907114-A // Electrooptical system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | May 02, 1933 00:00 | US-1907114-A // Electrooptical system // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2125280.pdf | 460 kB | Shaun Ewing | Aug 02, 1938 00:00 |
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US-2125280-A // Electron discharge apparatus // Bieling Carl A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | Aug 02, 1938 00:00 | US-2125280-A // Electron discharge apparatus // Bieling Carl A. // Bell Telephone Labor Inc | ||||
| PDF File 1962312.pdf | 460 kB | Shaun Ewing | Jun 12, 1934 00:00 |
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US-1962312-A // Signaling system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | Jun 12, 1934 00:00 | US-1962312-A // Signaling system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1809887.pdf | 460 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1809887-A // Adapter // Broadwell Howard // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1809887-A // Adapter // Broadwell Howard // Bell Telephone Labor Inc | ||||
| PDF File 2144844.pdf | 460 kB | Shaun Ewing | Jan 24, 1939 00:00 |
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US-2144844-A // Magnetic telegraphone // Hickman Clarence N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 460 kB | Shaun Ewing | Jan 24, 1939 00:00 | US-2144844-A // Magnetic telegraphone // Hickman Clarence N. // Bell Telephone Labor Inc | ||||
| PDF File 1792512.pdf | 459 kB | Shaun Ewing | Feb 17, 1931 00:00 |
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US-1792512-A // Electromagnetic device // Siegmund Humphreys O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Feb 17, 1931 00:00 | US-1792512-A // Electromagnetic device // Siegmund Humphreys O. // Bell Telephone Labor Inc | ||||
| PDF File 2160017.pdf | 459 kB | Shaun Ewing | May 30, 1939 00:00 |
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US-2160017-A // Signaling system // Hearn Richard B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160017-A // Signaling system // Hearn Richard B. // Bell Telephone Labor Inc | ||||
| PDF File 1848364.pdf | 459 kB | Shaun Ewing | Mar 08, 1932 00:00 |
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US-1848364-A // Treating magnetic materials // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Mar 08, 1932 00:00 | US-1848364-A // Treating magnetic materials // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 1795656.pdf | 459 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795656-A // Service-observing system // Massonneau Robert F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795656-A // Service-observing system // Massonneau Robert F. // Bell Telephone Labor Inc | ||||
| PDF File 2153528.pdf | 459 kB | Shaun Ewing | Apr 04, 1939 00:00 |
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US-2153528-A // Broad band transmission system // Benning Harvey H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Apr 04, 1939 00:00 | US-2153528-A // Broad band transmission system // Benning Harvey H. // Bell Telephone Labor Inc | ||||
| PDF File 1882829.pdf | 458 kB | Shaun Ewing | Oct 18, 1932 00:00 |
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US-1882829-A // Relief picture viewing screen // Hall Howard // Bell Telephone Labor Inc | |||
| Version 1 (current) | 458 kB | Shaun Ewing | Oct 18, 1932 00:00 | US-1882829-A // Relief picture viewing screen // Hall Howard // Bell Telephone Labor Inc | ||||
| PDF File 1804409.pdf | 458 kB | Shaun Ewing | May 12, 1931 00:00 |
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US-1804409-A // Telephone exchange system // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 458 kB | Shaun Ewing | May 12, 1931 00:00 | US-1804409-A // Telephone exchange system // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 2226934.pdf | 458 kB | Shaun Ewing | Dec 31, 1940 00:00 |
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US-2226934-A // Acoustic device // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 458 kB | Shaun Ewing | Dec 31, 1940 00:00 | US-2226934-A // Acoustic device // Kannenberg Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 1909810.pdf | 458 kB | Shaun Ewing | May 16, 1933 00:00 |
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US-1909810-A // Telephony // Christensen Howard // Bell Telephone Labor Inc | |||
| Version 1 (current) | 458 kB | Shaun Ewing | May 16, 1933 00:00 | US-1909810-A // Telephony // Christensen Howard // Bell Telephone Labor Inc | ||||
| PDF File 2214625.pdf | 458 kB | Shaun Ewing | Sept 10, 1940 00:00 |
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US-2214625-A // Testing magnetic cores and coils // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 458 kB | Shaun Ewing | Sept 10, 1940 00:00 | US-2214625-A // Testing magnetic cores and coils // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2108637.pdf | 457 kB | Shaun Ewing | Feb 15, 1938 00:00 |
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US-2108637-A // Testing apparatus // Bartgis Charles P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Feb 15, 1938 00:00 | US-2108637-A // Testing apparatus // Bartgis Charles P. // Bell Telephone Labor Inc | ||||
| PDF File 2126859.pdf | 457 kB | Shaun Ewing | Aug 16, 1938 00:00 |
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US-2126859-A // Frequency converter // Affel Herman A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Aug 16, 1938 00:00 | US-2126859-A // Frequency converter // Affel Herman A. // Bell Telephone Labor Inc | ||||
| PDF File 2179237.pdf | 456 kB | Shaun Ewing | Nov 07, 1939 00:00 |
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US-2179237-A // Tone generator // Stibitz George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179237-A // Tone generator // Stibitz George R. // Bell Telephone Labor Inc |
