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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2069038.pdf | 594 kB | Shaun Ewing | Jan 26, 1937 00:00 |
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US-2069038-A // Telephone subscriber's substation // Labaugh James Monroe // American Telephone & Telegraph | |||
| Version 1 (current) | 594 kB | Shaun Ewing | Jan 26, 1937 00:00 | US-2069038-A // Telephone subscriber's substation // Labaugh James Monroe // American Telephone & Telegraph | ||||
| PDF File 1853070.pdf | 592 kB | Shaun Ewing | Apr 12, 1932 00:00 |
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US-1853070-A // Equalization of power level in alpha signal transmitting system // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 592 kB | Shaun Ewing | Apr 12, 1932 00:00 | US-1853070-A // Equalization of power level in alpha signal transmitting system // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1811915.pdf | 592 kB | Shaun Ewing | Jun 30, 1931 00:00 |
|
US-1811915-A // Means to control cross talk // Carpe Allen // American Telephone & Telegraph | |||
| Version 1 (current) | 592 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811915-A // Means to control cross talk // Carpe Allen // American Telephone & Telegraph | ||||
| PDF File 1916316.pdf | 591 kB | Shaun Ewing | Jul 04, 1933 00:00 |
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US-1916316-A // Battery control circuit // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 591 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1916316-A // Battery control circuit // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 2047817.pdf | 590 kB | Shaun Ewing | Jul 14, 1936 00:00 |
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US-2047817-A // Picture transmitting system // Bailey Austin // American Telephone & Telegraph | |||
| Version 1 (current) | 590 kB | Shaun Ewing | Jul 14, 1936 00:00 | US-2047817-A // Picture transmitting system // Bailey Austin // American Telephone & Telegraph | ||||
| PDF File 2126535.pdf | 589 kB | Shaun Ewing | Aug 09, 1938 00:00 |
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US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 589 kB | Shaun Ewing | Aug 09, 1938 00:00 | US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2106769.pdf | 589 kB | Shaun Ewing | Feb 01, 1938 00:00 |
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US-2106769-A // Transmission of guided waves // Southworth George C. // American Telephone & Telegraph | |||
| Version 1 (current) | 589 kB | Shaun Ewing | Feb 01, 1938 00:00 | US-2106769-A // Transmission of guided waves // Southworth George C. // American Telephone & Telegraph | ||||
| PDF File 1860458.pdf | 588 kB | Shaun Ewing | May 31, 1932 00:00 |
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US-1860458-A // Telephone signaling system // Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 588 kB | Shaun Ewing | May 31, 1932 00:00 | US-1860458-A // Telephone signaling system // Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1834992.pdf | 587 kB | Shaun Ewing | Dec 08, 1931 00:00 |
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US-1834992-A // Device for producing modulated currents // Almquist Milton L. // American Telephone & Telegraph | |||
| Version 1 (current) | 587 kB | Shaun Ewing | Dec 08, 1931 00:00 | US-1834992-A // Device for producing modulated currents // Almquist Milton L. // American Telephone & Telegraph | ||||
| PDF File 2020308.pdf | 587 kB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020308-A // Ocean cable system // Gannett Danforth King // American Telephone & Telegraph | |||
| Version 1 (current) | 587 kB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020308-A // Ocean cable system // Gannett Danforth King // American Telephone & Telegraph | ||||
| PDF File 1811905.pdf | 584 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811905-A // Means to control cross talk // Affel Herman A. ; Carpe Allen // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811905-A // Means to control cross talk // Affel Herman A. ; Carpe Allen // American Telephone & Telegraph | ||||
| PDF File 1820088.pdf | 584 kB | Shaun Ewing | Aug 25, 1931 00:00 |
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US-1820088-A // Recording apparatus // Parker Ralzemond D. ; Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Aug 25, 1931 00:00 | US-1820088-A // Recording apparatus // Parker Ralzemond D. ; Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1831922.pdf | 584 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1831922-A // Telephone exchange system // Mcdavitt Marcellus B. ; Jr. Paul C. Schwantes, // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1831922-A // Telephone exchange system // Mcdavitt Marcellus B. ; Jr. Paul C. Schwantes, // American Telephone & Telegraph | ||||
| PDF File 2141282.pdf | 584 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141282-A // Wave transmission // Southworth George Clark ; Willis French Hoke // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141282-A // Wave transmission // Southworth George Clark ; Willis French Hoke // American Telephone & Telegraph | ||||
| PDF File 2173335.pdf | 582 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173335-A // Telegraph exchange system // Kinkead Fullerton S. ; Singer Fred J. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173335-A // Telegraph exchange system // Kinkead Fullerton S. ; Singer Fred J. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1842523.pdf | 582 kB | Shaun Ewing | Jan 26, 1932 00:00 |
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US-1842523-A // Telegraph system // Hanley Frank H. // American Telephone & Telegraph | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Jan 26, 1932 00:00 | US-1842523-A // Telegraph system // Hanley Frank H. // American Telephone & Telegraph | ||||
| PDF File 2212290.pdf | 582 kB | Shaun Ewing | Aug 20, 1940 00:00 |
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US-2212290-A // Apparatus for transferring cable circuits // Fisher Donald ; Parker George Blaine ; Parker Lloyd L. ; Meehan John Phillip // American Telephone & Telegraph | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Aug 20, 1940 00:00 | US-2212290-A // Apparatus for transferring cable circuits // Fisher Donald ; Parker George Blaine ; Parker Lloyd L. ; Meehan John Phillip // American Telephone & Telegraph | ||||
| PDF File 1982735.pdf | 581 kB | Shaun Ewing | Dec 04, 1934 00:00 |
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US-1982735-A // Telephone coin system // Heitsmith William Jennings // American Telephone & Telegraph | |||
| Version 1 (current) | 581 kB | Shaun Ewing | Dec 04, 1934 00:00 | US-1982735-A // Telephone coin system // Heitsmith William Jennings // American Telephone & Telegraph | ||||
| PDF File 1820116.pdf | 580 kB | Shaun Ewing | Aug 25, 1931 00:00 |
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US-1820116-A // Testing system // Burns Roy W. // American Telephone & Telegraph | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Aug 25, 1931 00:00 | US-1820116-A // Testing system // Burns Roy W. // American Telephone & Telegraph | ||||
| PDF File 2104128.pdf | 578 kB | Shaun Ewing | Jan 04, 1938 00:00 |
|
US-2104128-A // Gas discharge tube delay circuit // Honaman Richard Karl ; Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 578 kB | Shaun Ewing | Jan 04, 1938 00:00 | US-2104128-A // Gas discharge tube delay circuit // Honaman Richard Karl ; Swart Leland Kasson // American Telephone & Telegraph |
