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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2952733.pdf | 2.52 MB | Shaun Ewing | Sept 13, 1960 00:00 |
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US-2952733-A // Device for automatically producing teletypewriter signals // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.52 MB | Shaun Ewing | Sept 13, 1960 00:00 | US-2952733-A // Device for automatically producing teletypewriter signals // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2993952.pdf | 2.46 MB | Shaun Ewing | Jul 25, 1961 00:00 |
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US-2993952-A // System for testing sequential code selector // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.46 MB | Shaun Ewing | Jul 25, 1961 00:00 | US-2993952-A // System for testing sequential code selector // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2358593.pdf | 2.37 MB | Shaun Ewing | Sept 19, 1944 00:00 |
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US-2358593-A // Teletypewriter recording system // Rank Paul Jones // American Telephone & Telegraph | |||
| Version 1 (current) | 2.37 MB | Shaun Ewing | Sept 19, 1944 00:00 | US-2358593-A // Teletypewriter recording system // Rank Paul Jones // American Telephone & Telegraph | ||||
| PDF File 2403888.pdf | 2.37 MB | Shaun Ewing | Jul 09, 1946 00:00 |
|
US-2403888-A // Enciphering and deciphering system // Cronburg Claude Irving // American Telephone & Telegraph | |||
| Version 1 (current) | 2.37 MB | Shaun Ewing | Jul 09, 1946 00:00 | US-2403888-A // Enciphering and deciphering system // Cronburg Claude Irving // American Telephone & Telegraph | ||||
| PDF File 2393236.pdf | 2.36 MB | Shaun Ewing | Jan 22, 1946 00:00 |
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US-2393236-A // Subscribers' line testing system // Corey Horace Edmund ; Wright Frank // American Telephone & Telegraph | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Jan 22, 1946 00:00 | US-2393236-A // Subscribers' line testing system // Corey Horace Edmund ; Wright Frank // American Telephone & Telegraph | ||||
| PDF File 2584736.pdf | 2.36 MB | Shaun Ewing | Feb 05, 1952 00:00 |
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US-2584736-A // Telegraph switching system // Perry Donald B. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Feb 05, 1952 00:00 | US-2584736-A // Telegraph switching system // Perry Donald B. // American Telephone & Telegraph | ||||
| PDF File 3322901.pdf | 2.35 MB | Shaun Ewing | May 30, 1967 00:00 |
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US-3322901-A // Pbx dial conference trunk circuit // Trimmer Daniel R. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | May 30, 1967 00:00 | US-3322901-A // Pbx dial conference trunk circuit // Trimmer Daniel R. // American Telephone & Telegraph | ||||
| PDF File 2262541.pdf | 2.31 MB | Shaun Ewing | Nov 11, 1941 00:00 |
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US-2262541-A // Teletypewriter selective calling and switching system // Anspach Russell Jacob // American Telephone & Telegraph | |||
| Version 1 (current) | 2.31 MB | Shaun Ewing | Nov 11, 1941 00:00 | US-2262541-A // Teletypewriter selective calling and switching system // Anspach Russell Jacob // American Telephone & Telegraph | ||||
| PDF File 3111561.pdf | 2.30 MB | Shaun Ewing | Nov 19, 1963 00:00 |
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US-3111561-A // Intercept equipment // Dunning Sanford F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.30 MB | Shaun Ewing | Nov 19, 1963 00:00 | US-3111561-A // Intercept equipment // Dunning Sanford F. // American Telephone & Telegraph | ||||
| PDF File 2345933.pdf | 2.26 MB | Shaun Ewing | Apr 04, 1944 00:00 |
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US-2345933-A // Phase control in electrical transmission // Green Estill Ibbotson ; Monk Newton // American Telephone & Telegraph | |||
| Version 1 (current) | 2.26 MB | Shaun Ewing | Apr 04, 1944 00:00 | US-2345933-A // Phase control in electrical transmission // Green Estill Ibbotson ; Monk Newton // American Telephone & Telegraph | ||||
| PDF File 3384717.pdf | 2.26 MB | Shaun Ewing | May 21, 1968 00:00 |
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US-3384717-A // Cordless dispatch telephone switching system having conferencing means // Coston Semer H. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.26 MB | Shaun Ewing | May 21, 1968 00:00 | US-3384717-A // Cordless dispatch telephone switching system having conferencing means // Coston Semer H. // American Telephone & Telegraph | ||||
| PDF File 2922847.pdf | 2.25 MB | Shaun Ewing | Jan 26, 1960 00:00 |
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US-2922847-A // Distributing system // Dunning Sanford F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.25 MB | Shaun Ewing | Jan 26, 1960 00:00 | US-2922847-A // Distributing system // Dunning Sanford F. // American Telephone & Telegraph | ||||
| PDF File 2327458.pdf | 2.25 MB | Shaun Ewing | Aug 24, 1943 00:00 |
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US-2327458-A // Testing system // Relfe John Nicholson // American Telephone & Telegraph | |||
| Version 1 (current) | 2.25 MB | Shaun Ewing | Aug 24, 1943 00:00 | US-2327458-A // Testing system // Relfe John Nicholson // American Telephone & Telegraph | ||||
| PDF File 2397887.pdf | 2.23 MB | Shaun Ewing | Apr 02, 1946 00:00 |
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US-2397887-A // Automatic alternate routing of interoffice calls // Schroeppel Harold H. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.23 MB | Shaun Ewing | Apr 02, 1946 00:00 | US-2397887-A // Automatic alternate routing of interoffice calls // Schroeppel Harold H. // American Telephone & Telegraph | ||||
| PDF File 2284612.pdf | 2.18 MB | Shaun Ewing | May 26, 1942 00:00 |
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US-2284612-A // Phase control in electrical transmission // Green Estill Ibbotson ; Monk Newton // American Telephone & Telegraph | |||
| Version 1 (current) | 2.18 MB | Shaun Ewing | May 26, 1942 00:00 | US-2284612-A // Phase control in electrical transmission // Green Estill Ibbotson ; Monk Newton // American Telephone & Telegraph | ||||
| PDF File 2357576.pdf | 2.18 MB | Shaun Ewing | Sept 05, 1944 00:00 |
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US-2357576-A // Pay station telephone system // Brooks Chester E. ; Flint Erlon W. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.18 MB | Shaun Ewing | Sept 05, 1944 00:00 | US-2357576-A // Pay station telephone system // Brooks Chester E. ; Flint Erlon W. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2375125.pdf | 2.05 MB | Shaun Ewing | May 01, 1945 00:00 |
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US-2375125-A // Teletypewriter synchronizing arrangement // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.05 MB | Shaun Ewing | May 01, 1945 00:00 | US-2375125-A // Teletypewriter synchronizing arrangement // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2336373.pdf | 2.05 MB | Shaun Ewing | Dec 07, 1943 00:00 |
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US-2336373-A // Teletypewriter switching system // Starr Harry R. ; Waddington Walter E. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.05 MB | Shaun Ewing | Dec 07, 1943 00:00 | US-2336373-A // Teletypewriter switching system // Starr Harry R. ; Waddington Walter E. // American Telephone & Telegraph | ||||
| PDF File 2710891.pdf | 2.02 MB | Shaun Ewing | Jun 14, 1955 00:00 |
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US-2710891-A // Telegraph service board circuits // Fitch Karl E. ; Neiswinter James T. ; Purvis Matthew R. ; Vanderlippe Richard A. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.02 MB | Shaun Ewing | Jun 14, 1955 00:00 | US-2710891-A // Telegraph service board circuits // Fitch Karl E. ; Neiswinter James T. ; Purvis Matthew R. ; Vanderlippe Richard A. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2321392.pdf | 2.01 MB | Shaun Ewing | Jun 08, 1943 00:00 |
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US-2321392-A // Telegraph station break-in system // Kaufman Arthur William // American Telephone & Telegraph | |||
| Version 1 (current) | 2.01 MB | Shaun Ewing | Jun 08, 1943 00:00 | US-2321392-A // Telegraph station break-in system // Kaufman Arthur William // American Telephone & Telegraph |
