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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2507709.pdf | 742 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507709-A // Grid electrode and method of manufacture // Gronros Warren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 742 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507709-A // Grid electrode and method of manufacture // Gronros Warren // Bell Telephone Labor Inc | ||||
| PDF File 2523366.pdf | 741 kB | Shaun Ewing | Sept 26, 1950 00:00 |
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US-2523366-A // Mercury type relay // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 741 kB | Shaun Ewing | Sept 26, 1950 00:00 | US-2523366-A // Mercury type relay // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2515031.pdf | 741 kB | Shaun Ewing | Jul 11, 1950 00:00 |
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US-2515031-A // Microphone having controllable directional response pattern // Jr. Robert Black, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 741 kB | Shaun Ewing | Jul 11, 1950 00:00 | US-2515031-A // Microphone having controllable directional response pattern // Jr. Robert Black, // Bell Telephone Labor Inc | ||||
| PDF File 2522130.pdf | 741 kB | Shaun Ewing | Sept 12, 1950 00:00 |
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US-2522130-A // Carrier telegraph receiving circuit // Pfleger Kenneth W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 741 kB | Shaun Ewing | Sept 12, 1950 00:00 | US-2522130-A // Carrier telegraph receiving circuit // Pfleger Kenneth W. // Bell Telephone Labor Inc | ||||
| PDF File 2436395.pdf | 738 kB | Shaun Ewing | Feb 24, 1948 00:00 |
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US-2436395-A // Pulse generator // Manley Jack M. ; Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 738 kB | Shaun Ewing | Feb 24, 1948 00:00 | US-2436395-A // Pulse generator // Manley Jack M. ; Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2458556.pdf | 737 kB | Shaun Ewing | Jan 11, 1949 00:00 |
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US-2458556-A // Coupled cavity resonator and wave guide apparatus // Bowen Arnold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 737 kB | Shaun Ewing | Jan 11, 1949 00:00 | US-2458556-A // Coupled cavity resonator and wave guide apparatus // Bowen Arnold E. // Bell Telephone Labor Inc | ||||
| PDF File 2493064.pdf | 736 kB | Shaun Ewing | Jan 03, 1950 00:00 |
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US-2493064-A // Motor-control circuit // Germanton Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 736 kB | Shaun Ewing | Jan 03, 1950 00:00 | US-2493064-A // Motor-control circuit // Germanton Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2527624.pdf | 736 kB | Shaun Ewing | Oct 31, 1950 00:00 |
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US-2527624-A // Object locator // Ferrell Enoch B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 736 kB | Shaun Ewing | Oct 31, 1950 00:00 | US-2527624-A // Object locator // Ferrell Enoch B. // Bell Telephone Labor Inc | ||||
| PDF File 2533476.pdf | 735 kB | Shaun Ewing | Dec 12, 1950 00:00 |
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US-2533476-A // Automatic telephone systems involving prepayment telephone lines // Lamberty Frederick R. ; Martins Arthur S. ; Wichman Wesley T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 735 kB | Shaun Ewing | Dec 12, 1950 00:00 | US-2533476-A // Automatic telephone systems involving prepayment telephone lines // Lamberty Frederick R. ; Martins Arthur S. ; Wichman Wesley T. // Bell Telephone Labor Inc | ||||
| PDF File 2513296.pdf | 734 kB | Shaun Ewing | Jul 04, 1950 00:00 |
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US-2513296-A // Electron discharge device, including tunable cavity resonator // Ekstrand Sture O. ; Walsh Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 734 kB | Shaun Ewing | Jul 04, 1950 00:00 | US-2513296-A // Electron discharge device, including tunable cavity resonator // Ekstrand Sture O. ; Walsh Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 2519667.pdf | 733 kB | Shaun Ewing | Aug 22, 1950 00:00 |
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US-2519667-A // Motor control circuit // Jr. Walter Koenig, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 733 kB | Shaun Ewing | Aug 22, 1950 00:00 | US-2519667-A // Motor control circuit // Jr. Walter Koenig, // Bell Telephone Labor Inc | ||||
| PDF File 2416711.pdf | 732 kB | Shaun Ewing | Mar 04, 1947 00:00 |
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US-2416711-A // Toll trunk selection // Myers Oscar // Bell Telephone Labor Inc | |||
| Version 1 (current) | 732 kB | Shaun Ewing | Mar 04, 1947 00:00 | US-2416711-A // Toll trunk selection // Myers Oscar // Bell Telephone Labor Inc | ||||
| PDF File 2417830.pdf | 732 kB | Shaun Ewing | Mar 25, 1947 00:00 |
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US-2417830-A // Compressional wave signaling device // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 732 kB | Shaun Ewing | Mar 25, 1947 00:00 | US-2417830-A // Compressional wave signaling device // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2453716.pdf | 731 kB | Shaun Ewing | Nov 16, 1948 00:00 |
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US-2453716-A // High-frequency tank circuits // Llewellyn Frederick B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Nov 16, 1948 00:00 | US-2453716-A // High-frequency tank circuits // Llewellyn Frederick B. // Bell Telephone Labor Inc | ||||
| PDF File 2407690.pdf | 729 kB | Shaun Ewing | Sept 17, 1946 00:00 |
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US-2407690-A // Wave guide electrotherapeutic system // Southworth George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 729 kB | Shaun Ewing | Sept 17, 1946 00:00 | US-2407690-A // Wave guide electrotherapeutic system // Southworth George C. // Bell Telephone Labor Inc | ||||
| PDF File 2484224.pdf | 729 kB | Shaun Ewing | Oct 11, 1949 00:00 |
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US-2484224-A // Electromagnetic relay mechanism // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 729 kB | Shaun Ewing | Oct 11, 1949 00:00 | US-2484224-A // Electromagnetic relay mechanism // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2477337.pdf | 728 kB | Shaun Ewing | Jul 26, 1949 00:00 |
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US-2477337-A // Magnetic detector // Kahl William E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 728 kB | Shaun Ewing | Jul 26, 1949 00:00 | US-2477337-A // Magnetic detector // Kahl William E. // Bell Telephone Labor Inc | ||||
| PDF File 2396044.pdf | 728 kB | Shaun Ewing | Mar 05, 1946 00:00 |
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US-2396044-A // Switching device // Fox Arthur Gardner // Bell Telephone Labor Inc | |||
| Version 1 (current) | 728 kB | Shaun Ewing | Mar 05, 1946 00:00 | US-2396044-A // Switching device // Fox Arthur Gardner // Bell Telephone Labor Inc | ||||
| PDF File 2429601.pdf | 728 kB | Shaun Ewing | Oct 28, 1947 00:00 |
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US-2429601-A // Microwave radar directive antenna // Biskeborn Merle C. ; Fox Arthur G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 728 kB | Shaun Ewing | Oct 28, 1947 00:00 | US-2429601-A // Microwave radar directive antenna // Biskeborn Merle C. ; Fox Arthur G. // Bell Telephone Labor Inc | ||||
| PDF File 2473414.pdf | 726 kB | Shaun Ewing | Jun 14, 1949 00:00 |
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US-2473414-A // Voltage multiplying circuit // Darlington Sidney // Bell Telephone Labor Inc | |||
| Version 1 (current) | 726 kB | Shaun Ewing | Jun 14, 1949 00:00 | US-2473414-A // Voltage multiplying circuit // Darlington Sidney // Bell Telephone Labor Inc |
