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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2053982.pdf | 333 kB | Shaun Ewing | Sept 08, 1936 00:00 |
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US-2053982-A // Whistle // Weiss Garland F. // American Telephone & Telegraph | |||
| Version 1 (current) | 333 kB | Shaun Ewing | Sept 08, 1936 00:00 | US-2053982-A // Whistle // Weiss Garland F. // American Telephone & Telegraph | ||||
| PDF File 2161006.pdf | 330 kB | Shaun Ewing | Jun 06, 1939 00:00 |
|
US-2161006-A // Cabscope // Bixel Edward Carl ; Brown Howard D. // American Telephone & Telegraph | |||
| Version 1 (current) | 330 kB | Shaun Ewing | Jun 06, 1939 00:00 | US-2161006-A // Cabscope // Bixel Edward Carl ; Brown Howard D. // American Telephone & Telegraph | ||||
| PDF File 1932568.pdf | 329 kB | Shaun Ewing | Oct 31, 1933 00:00 |
|
US-1932568-A // Superimposed carrier telephone and carrier telegraph system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 329 kB | Shaun Ewing | Oct 31, 1933 00:00 | US-1932568-A // Superimposed carrier telephone and carrier telegraph system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1796496.pdf | 329 kB | Shaun Ewing | Mar 17, 1931 00:00 |
|
US-1796496-A // Book holder // Volkmar William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 329 kB | Shaun Ewing | Mar 17, 1931 00:00 | US-1796496-A // Book holder // Volkmar William A. // American Telephone & Telegraph | ||||
| PDF File 2041951.pdf | 328 kB | Shaun Ewing | May 26, 1936 00:00 |
|
US-2041951-A // Modulating system // Plebanski Jozef // American Telephone & Telegraph | |||
| Version 1 (current) | 328 kB | Shaun Ewing | May 26, 1936 00:00 | US-2041951-A // Modulating system // Plebanski Jozef // American Telephone & Telegraph | ||||
| PDF File 2069394.pdf | 328 kB | Shaun Ewing | Feb 02, 1937 00:00 |
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US-2069394-A // Alarm circuit // Stevenson William // American Telephone & Telegraph | |||
| Version 1 (current) | 328 kB | Shaun Ewing | Feb 02, 1937 00:00 | US-2069394-A // Alarm circuit // Stevenson William // American Telephone & Telegraph | ||||
| PDF File 2160206.pdf | 328 kB | Shaun Ewing | May 30, 1939 00:00 |
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US-2160206-A // Telegraph system, open morse telegraph key alarm circuit // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 328 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160206-A // Telegraph system, open morse telegraph key alarm circuit // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 1984460.pdf | 326 kB | Shaun Ewing | Dec 18, 1934 00:00 |
|
US-1984460-A // Coin chute // Carson Arthur // American Telephone & Telegraph | |||
| Version 1 (current) | 326 kB | Shaun Ewing | Dec 18, 1934 00:00 | US-1984460-A // Coin chute // Carson Arthur // American Telephone & Telegraph | ||||
| PDF File 1937640.pdf | 325 kB | Shaun Ewing | Dec 05, 1933 00:00 |
|
US-1937640-A // Means for preventing bias in telegraph systems // Clarke John L. // American Telephone & Telegraph | |||
| Version 1 (current) | 325 kB | Shaun Ewing | Dec 05, 1933 00:00 | US-1937640-A // Means for preventing bias in telegraph systems // Clarke John L. // American Telephone & Telegraph | ||||
| PDF File 2071476.pdf | 325 kB | Shaun Ewing | Feb 23, 1937 00:00 |
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US-2071476-A // Telegraph system // Thorp Vaughn Penfold // American Telephone & Telegraph | |||
| Version 1 (current) | 325 kB | Shaun Ewing | Feb 23, 1937 00:00 | US-2071476-A // Telegraph system // Thorp Vaughn Penfold // American Telephone & Telegraph | ||||
| PDF File 1838268.pdf | 324 kB | Shaun Ewing | Dec 29, 1931 00:00 |
|
US-1838268-A // Biased carrier telegraph system // Ladner Henry ; Welch Paul Vincent // American Telephone & Telegraph | |||
| Version 1 (current) | 324 kB | Shaun Ewing | Dec 29, 1931 00:00 | US-1838268-A // Biased carrier telegraph system // Ladner Henry ; Welch Paul Vincent // American Telephone & Telegraph | ||||
| PDF File 2115917.pdf | 324 kB | Shaun Ewing | May 03, 1938 00:00 |
|
US-2115917-A // Picture transmitting system // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 324 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115917-A // Picture transmitting system // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1928735.pdf | 323 kB | Shaun Ewing | Oct 03, 1933 00:00 |
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US-1928735-A // Multiconductor system for signaling circuits // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 323 kB | Shaun Ewing | Oct 03, 1933 00:00 | US-1928735-A // Multiconductor system for signaling circuits // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1821006.pdf | 322 kB | Shaun Ewing | Sept 01, 1931 00:00 |
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US-1821006-A // Measurement of negative resistance // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 322 kB | Shaun Ewing | Sept 01, 1931 00:00 | US-1821006-A // Measurement of negative resistance // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1954932.pdf | 322 kB | Shaun Ewing | Apr 17, 1934 00:00 |
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US-1954932-A // Telephone and direct conversation circuits // Harris Walter L. // American Telephone & Telegraph | |||
| Version 1 (current) | 322 kB | Shaun Ewing | Apr 17, 1934 00:00 | US-1954932-A // Telephone and direct conversation circuits // Harris Walter L. // American Telephone & Telegraph | ||||
| PDF File 1874543.pdf | 321 kB | Shaun Ewing | Aug 30, 1932 00:00 |
|
US-1874543-A // Cable-car // Kent Robert J. // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874543-A // Cable-car // Kent Robert J. // American Telephone & Telegraph | ||||
| PDF File 2181668.pdf | 321 kB | Shaun Ewing | Nov 28, 1939 00:00 |
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US-2181668-A // Telephone switchboard // Peterson George Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Nov 28, 1939 00:00 | US-2181668-A // Telephone switchboard // Peterson George Harry // American Telephone & Telegraph | ||||
| PDF File 1824802.pdf | 321 kB | Shaun Ewing | Sept 29, 1931 00:00 |
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US-1824802-A // Insulation testing system // Brehman Luther W. // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Sept 29, 1931 00:00 | US-1824802-A // Insulation testing system // Brehman Luther W. // American Telephone & Telegraph | ||||
| PDF File 2021978.pdf | 321 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2021978-A // Testing system // Almquist Milton Leroy ; Edwards Paul Griffith ; Clutts Charles Edward // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2021978-A // Testing system // Almquist Milton Leroy ; Edwards Paul Griffith ; Clutts Charles Edward // American Telephone & Telegraph | ||||
| PDF File 2070750.pdf | 320 kB | Shaun Ewing | Feb 16, 1937 00:00 |
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US-2070750-A // Regulator system // Rea Wilton Treat // American Telephone & Telegraph | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Feb 16, 1937 00:00 | US-2070750-A // Regulator system // Rea Wilton Treat // American Telephone & Telegraph |
