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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1907147.pdf | 787 kB | Shaun Ewing | May 02, 1933 00:00 |
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US-1907147-A // Transmission circuits // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 787 kB | Shaun Ewing | May 02, 1933 00:00 | US-1907147-A // Transmission circuits // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2165308.pdf | 787 kB | Shaun Ewing | Jul 11, 1939 00:00 |
|
US-2165308-A // Cathode ray device // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 787 kB | Shaun Ewing | Jul 11, 1939 00:00 | US-2165308-A // Cathode ray device // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2212830.pdf | 785 kB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212830-A // Relay // Hickman Clarence N. ; Heights Jackson ; Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212830-A // Relay // Hickman Clarence N. ; Heights Jackson ; Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 1799679.pdf | 785 kB | Shaun Ewing | Apr 07, 1931 00:00 |
|
US-1799679-A // Telephone-exchange system // Dunham Bert G. ; Fairbairn Rhys A. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799679-A // Telephone-exchange system // Dunham Bert G. ; Fairbairn Rhys A. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2126886.pdf | 785 kB | Shaun Ewing | Aug 16, 1938 00:00 |
|
US-2126886-A // Acoustic rectifying device // Hight Stuart C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Aug 16, 1938 00:00 | US-2126886-A // Acoustic rectifying device // Hight Stuart C. // Bell Telephone Labor Inc | ||||
| PDF File 1948969.pdf | 785 kB | Shaun Ewing | Feb 27, 1934 00:00 |
|
US-1948969-A // Electric switching device // Lane Cuthbert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Feb 27, 1934 00:00 | US-1948969-A // Electric switching device // Lane Cuthbert C. // Bell Telephone Labor Inc | ||||
| PDF File 2141378.pdf | 784 kB | Shaun Ewing | Dec 27, 1938 00:00 |
|
US-2141378-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 784 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141378-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2157694.pdf | 784 kB | Shaun Ewing | May 09, 1939 00:00 |
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US-2157694-A // Transmission level control // Fisher Harold J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 784 kB | Shaun Ewing | May 09, 1939 00:00 | US-2157694-A // Transmission level control // Fisher Harold J. // Bell Telephone Labor Inc | ||||
| PDF File 2041802.pdf | 784 kB | Shaun Ewing | May 26, 1936 00:00 |
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US-2041802-A // Electron emitter // Wilson James R. ; Acker John T. ; Hartman Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 784 kB | Shaun Ewing | May 26, 1936 00:00 | US-2041802-A // Electron emitter // Wilson James R. ; Acker John T. ; Hartman Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 2169179.pdf | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 |
|
US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1895441.pdf | 783 kB | Shaun Ewing | Jan 31, 1933 00:00 |
|
US-1895441-A // Sound translating device // Bostwick Lee G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Jan 31, 1933 00:00 | US-1895441-A // Sound translating device // Bostwick Lee G. // Bell Telephone Labor Inc | ||||
| PDF File 2046695.pdf | 783 kB | Shaun Ewing | Jul 07, 1936 00:00 |
|
US-2046695-A // Record projector // Mottram Elliott T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Jul 07, 1936 00:00 | US-2046695-A // Record projector // Mottram Elliott T. // Bell Telephone Labor Inc | ||||
| PDF File 2196844.pdf | 783 kB | Shaun Ewing | Apr 09, 1940 00:00 |
|
US-2196844-A // Wave amplifying system // West Julian M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Apr 09, 1940 00:00 | US-2196844-A // Wave amplifying system // West Julian M. // 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 2173183.pdf | 781 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173183-A // Cross-talk measurement // Schramm Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173183-A // Cross-talk measurement // Schramm Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 1931028.pdf | 781 kB | Shaun Ewing | Oct 17, 1933 00:00 |
|
US-1931028-A // Piezo-electric relay // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1931028-A // Piezo-electric relay // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 2143163.pdf | 781 kB | Shaun Ewing | Jan 10, 1939 00:00 |
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US-2143163-A // Carrier communication system // Monk Newton // Bell Telephone Labor Inc | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Jan 10, 1939 00:00 | US-2143163-A // Carrier communication system // Monk Newton // Bell Telephone Labor Inc | ||||
| PDF File 1795439.pdf | 781 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795439-A // Magnetic device // Pratt Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795439-A // Magnetic device // Pratt Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 1869870.pdf | 780 kB | Shaun Ewing | Aug 02, 1932 00:00 |
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US-1869870-A // Filtering circuits // Stevenson George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 780 kB | Shaun Ewing | Aug 02, 1932 00:00 | US-1869870-A // Filtering circuits // Stevenson George H. // Bell Telephone Labor Inc | ||||
| PDF File 1939725.pdf | 779 kB | Shaun Ewing | Dec 19, 1933 00:00 |
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US-1939725-A // Transmission circuits // Pruden Harold M. ; Wadsworth Paul W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 779 kB | Shaun Ewing | Dec 19, 1933 00:00 | US-1939725-A // Transmission circuits // Pruden Harold M. ; Wadsworth Paul W. // Bell Telephone Labor Inc |
