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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2306236.pdf | 3.42 MB | Shaun Ewing | Dec 22, 1942 00:00 |
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US-2306236-A // Telephone system // Walsh John G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.42 MB | Shaun Ewing | Dec 22, 1942 00:00 | US-2306236-A // Telephone system // Walsh John G. // Bell Telephone Labor Inc | ||||
| PDF File 2349586.pdf | 3.36 MB | Shaun Ewing | May 23, 1944 00:00 |
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US-2349586-A // Inverse neutral telegraph repeater concentration group switching // Bonorden Allen R. ; Koos Paul V. ; Krecek Joseph A. ; Large Wayne V. K. ; Marshall Tola A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.36 MB | Shaun Ewing | May 23, 1944 00:00 | US-2349586-A // Inverse neutral telegraph repeater concentration group switching // Bonorden Allen R. ; Koos Paul V. ; Krecek Joseph A. ; Large Wayne V. K. ; Marshall Tola A. // Bell Telephone Labor Inc | ||||
| PDF File 2370736.pdf | 3.29 MB | Shaun Ewing | Mar 06, 1945 00:00 |
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US-2370736-A // Telephone system // Kittredge Linus E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.29 MB | Shaun Ewing | Mar 06, 1945 00:00 | US-2370736-A // Telephone system // Kittredge Linus E. // Bell Telephone Labor Inc | ||||
| PDF File 2288251.pdf | 3.28 MB | Shaun Ewing | Jun 30, 1942 00:00 |
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US-2288251-A // Automatic toll switching telephone system // Murphy Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.28 MB | Shaun Ewing | Jun 30, 1942 00:00 | US-2288251-A // Automatic toll switching telephone system // Murphy Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 2277600.pdf | 3.26 MB | Shaun Ewing | Mar 24, 1942 00:00 |
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US-2277600-A // Telephone system // Mckim James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.26 MB | Shaun Ewing | Mar 24, 1942 00:00 | US-2277600-A // Telephone system // Mckim James B. // Bell Telephone Labor Inc | ||||
| PDF File 2363671.pdf | 3.19 MB | Shaun Ewing | Nov 28, 1944 00:00 |
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US-2363671-A // Telephone system // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.19 MB | Shaun Ewing | Nov 28, 1944 00:00 | US-2363671-A // Telephone system // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2302071.pdf | 3.16 MB | Shaun Ewing | Nov 17, 1942 00:00 |
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US-2302071-A // Signaling system // Taylor Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.16 MB | Shaun Ewing | Nov 17, 1942 00:00 | US-2302071-A // Signaling system // Taylor Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 2355903.pdf | 3.15 MB | Shaun Ewing | Aug 15, 1944 00:00 |
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US-2355903-A // Signaling system // Blount Frank E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.15 MB | Shaun Ewing | Aug 15, 1944 00:00 | US-2355903-A // Signaling system // Blount Frank E. // Bell Telephone Labor Inc | ||||
| PDF File 2238126.pdf | 3.15 MB | Shaun Ewing | Apr 15, 1941 00:00 |
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US-2238126-A // Trouble recorder // Myers Oscar // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.15 MB | Shaun Ewing | Apr 15, 1941 00:00 | US-2238126-A // Trouble recorder // Myers Oscar // Bell Telephone Labor Inc | ||||
| PDF File 2300951.pdf | 3.07 MB | Shaun Ewing | Nov 03, 1942 00:00 |
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US-2300951-A // Telephone system // Malthaner William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.07 MB | Shaun Ewing | Nov 03, 1942 00:00 | US-2300951-A // Telephone system // Malthaner William A. // Bell Telephone Labor Inc | ||||
| PDF File 2332912.pdf | 3.02 MB | Shaun Ewing | Oct 26, 1943 00:00 |
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US-2332912-A // Telephone system // Hecht George ; Lundstrom Alexis A. ; Taylor Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.02 MB | Shaun Ewing | Oct 26, 1943 00:00 | US-2332912-A // Telephone system // Hecht George ; Lundstrom Alexis A. ; Taylor Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 2338636.pdf | 3.01 MB | Shaun Ewing | Jan 04, 1944 00:00 |
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US-2338636-A // Automatic billing system // Goodrum Charles L. ; Hinrichsen Edward E. ; Keller Leo // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.01 MB | Shaun Ewing | Jan 04, 1944 00:00 | US-2338636-A // Automatic billing system // Goodrum Charles L. ; Hinrichsen Edward E. ; Keller Leo // Bell Telephone Labor Inc | ||||
| PDF File 2356330.pdf | 3.01 MB | Shaun Ewing | Aug 22, 1944 00:00 |
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US-2356330-A // Signaling system // Lundstrom Alexis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.01 MB | Shaun Ewing | Aug 22, 1944 00:00 | US-2356330-A // Signaling system // Lundstrom Alexis A. // Bell Telephone Labor Inc | ||||
| PDF File 2350917.pdf | 2.96 MB | Shaun Ewing | Jun 06, 1944 00:00 |
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US-2350917-A // Signaling system // Newby Neal D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.96 MB | Shaun Ewing | Jun 06, 1944 00:00 | US-2350917-A // Signaling system // Newby Neal D. // Bell Telephone Labor Inc | ||||
| PDF File 2369578.pdf | 2.94 MB | Shaun Ewing | Feb 13, 1945 00:00 |
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US-2369578-A // Telegraph station selector system // Kinkead Fullerton S. ; Krecek Joseph A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.94 MB | Shaun Ewing | Feb 13, 1945 00:00 | US-2369578-A // Telegraph station selector system // Kinkead Fullerton S. ; Krecek Joseph A. // Bell Telephone Labor Inc | ||||
| PDF File 2327201.pdf | 2.91 MB | Shaun Ewing | Aug 17, 1943 00:00 |
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US-2327201-A // Telephone system // Martins Arthur S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.91 MB | Shaun Ewing | Aug 17, 1943 00:00 | US-2327201-A // Telephone system // Martins Arthur S. // Bell Telephone Labor Inc | ||||
| PDF File 2327481.pdf | 2.89 MB | Shaun Ewing | Aug 24, 1943 00:00 |
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US-2327481-A // Telephone system // Abbott Henry H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.89 MB | Shaun Ewing | Aug 24, 1943 00:00 | US-2327481-A // Telephone system // Abbott Henry H. // Bell Telephone Labor Inc | ||||
| PDF File 2231404.pdf | 2.86 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231404-A // Electromechanical wave filter // Blackman Ralph B. ; Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.86 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231404-A // Electromechanical wave filter // Blackman Ralph B. ; Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2350873.pdf | 2.85 MB | Shaun Ewing | Jun 06, 1944 00:00 |
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US-2350873-A // Automatic switching telephone system // Busch Aloysius J. ; Henry Israel H. ; Seibel Charles F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.85 MB | Shaun Ewing | Jun 06, 1944 00:00 | US-2350873-A // Automatic switching telephone system // Busch Aloysius J. ; Henry Israel H. ; Seibel Charles F. // Bell Telephone Labor Inc | ||||
| PDF File 2253650.pdf | 2.85 MB | Shaun Ewing | Aug 26, 1941 00:00 |
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US-2253650-A // Telephone call transmitter // Richard Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.85 MB | Shaun Ewing | Aug 26, 1941 00:00 | US-2253650-A // Telephone call transmitter // Richard Charles D. // Bell Telephone Labor Inc |
