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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1965347.pdf | 675 kB | Shaun Ewing | Jul 03, 1934 00:00 |
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US-1965347-A // Direction control, switch for signaling systems // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Jul 03, 1934 00:00 | US-1965347-A // Direction control, switch for signaling systems // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 2208752.pdf | 675 kB | Shaun Ewing | Jul 23, 1940 00:00 |
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US-2208752-A // Volume limiter circuit // Jr. Stephen Doba, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Jul 23, 1940 00:00 | US-2208752-A // Volume limiter circuit // Jr. Stephen Doba, // Bell Telephone Labor Inc | ||||
| PDF File 1947256.pdf | 675 kB | Shaun Ewing | Feb 13, 1934 00:00 |
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US-1947256-A // Antenna counterpoise system // Friis Harald T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Feb 13, 1934 00:00 | US-1947256-A // Antenna counterpoise system // Friis Harald T. // Bell Telephone Labor Inc | ||||
| PDF File 2027180.pdf | 675 kB | Shaun Ewing | Jan 07, 1936 00:00 |
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US-2027180-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Jan 07, 1936 00:00 | US-2027180-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | ||||
| PDF File 1852774.pdf | 674 kB | Shaun Ewing | Apr 05, 1932 00:00 |
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US-1852774-A // Translating device // Gent Edgar W. ; Potts Louis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | Apr 05, 1932 00:00 | US-1852774-A // Translating device // Gent Edgar W. ; Potts Louis M. // Bell Telephone Labor Inc | ||||
| PDF File 2173472.pdf | 674 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173472-A // Transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173472-A // Transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc | ||||
| PDF File 2117001.pdf | 674 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2117001-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | May 10, 1938 00:00 | US-2117001-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2019504.pdf | 674 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019504-A // Activation process for electron emitters // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019504-A // Activation process for electron emitters // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | ||||
| PDF File 1904569.pdf | 673 kB | Shaun Ewing | Apr 18, 1933 00:00 |
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US-1904569-A // Protective device // Tebo Julian D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 673 kB | Shaun Ewing | Apr 18, 1933 00:00 | US-1904569-A // Protective device // Tebo Julian D. // Bell Telephone Labor Inc | ||||
| PDF File 1864981.pdf | 673 kB | Shaun Ewing | Jun 28, 1932 00:00 |
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US-1864981-A // Circuit breaker for motors in signaling systems // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 673 kB | Shaun Ewing | Jun 28, 1932 00:00 | US-1864981-A // Circuit breaker for motors in signaling systems // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 2117698.pdf | 672 kB | Shaun Ewing | May 17, 1938 00:00 |
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US-2117698-A // Transmission system // Budenbom Horace T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 672 kB | Shaun Ewing | May 17, 1938 00:00 | US-2117698-A // Transmission system // Budenbom Horace T. // Bell Telephone Labor Inc | ||||
| PDF File 1799795.pdf | 672 kB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799795-A // Sound recording and reproducing // Horton Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 672 kB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799795-A // Sound recording and reproducing // Horton Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 2188940.pdf | 672 kB | Shaun Ewing | Feb 06, 1940 00:00 |
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US-2188940-A // Electron discharge device // Diggory Benjamin A. ; Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 672 kB | Shaun Ewing | Feb 06, 1940 00:00 | US-2188940-A // Electron discharge device // Diggory Benjamin A. ; Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2101258.pdf | 672 kB | Shaun Ewing | Dec 07, 1937 00:00 |
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US-2101258-A // Telephone system // Korn Franklin A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 672 kB | Shaun Ewing | Dec 07, 1937 00:00 | US-2101258-A // Telephone system // Korn Franklin A. // Bell Telephone Labor Inc | ||||
| PDF File 2008857.pdf | 671 kB | Shaun Ewing | Jul 23, 1935 00:00 |
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US-2008857-A // Mechanical impedance meter // Flanders Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Jul 23, 1935 00:00 | US-2008857-A // Mechanical impedance meter // Flanders Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 1986656.pdf | 671 kB | Shaun Ewing | Jan 01, 1935 00:00 |
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US-1986656-A // Sealed joint and method of making same // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Jan 01, 1935 00:00 | US-1986656-A // Sealed joint and method of making same // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 1846883.pdf | 670 kB | Shaun Ewing | Feb 23, 1932 00:00 |
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US-1846883-A // Synchronous signaling system // Locke George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 670 kB | Shaun Ewing | Feb 23, 1932 00:00 | US-1846883-A // Synchronous signaling system // Locke George A. // Bell Telephone Labor Inc | ||||
| PDF File 1812828.pdf | 669 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812828-A // Switch or commutating means // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 669 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812828-A // Switch or commutating means // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1859910.pdf | 669 kB | Shaun Ewing | May 24, 1932 00:00 |
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US-1859910-A // Telephone system // Bowne Langford J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 669 kB | Shaun Ewing | May 24, 1932 00:00 | US-1859910-A // Telephone system // Bowne Langford J. // Bell Telephone Labor Inc | ||||
| PDF File 2115141.pdf | 669 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115141-A // Transmission regulating system // Eckberg Curtis R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 669 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115141-A // Transmission regulating system // Eckberg Curtis R. // Bell Telephone Labor Inc |
