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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2383759.pdf | 1.70 MB | Shaun Ewing | Aug 28, 1945 00:00 |
|
US-2383759-A // Revertive pulse repeater // Avery Robert Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.70 MB | Shaun Ewing | Aug 28, 1945 00:00 | US-2383759-A // Revertive pulse repeater // Avery Robert Campbell // American Telephone & Telegraph | ||||
| PDF File 2347518.pdf | 1.70 MB | Shaun Ewing | Apr 25, 1944 00:00 |
|
US-2347518-A // Testing arrangement for telegraph circuits // Soderholm James Spencer ; Breen Charles // American Telephone & Telegraph | |||
| Version 1 (current) | 1.70 MB | Shaun Ewing | Apr 25, 1944 00:00 | US-2347518-A // Testing arrangement for telegraph circuits // Soderholm James Spencer ; Breen Charles // American Telephone & Telegraph | ||||
| PDF File 2397881.pdf | 1.69 MB | Shaun Ewing | Apr 02, 1946 00:00 |
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US-2397881-A // Signaling system // Nitterauer Franklin David // American Telephone & Telegraph | |||
| Version 1 (current) | 1.69 MB | Shaun Ewing | Apr 02, 1946 00:00 | US-2397881-A // Signaling system // Nitterauer Franklin David // American Telephone & Telegraph | ||||
| PDF File 3115552.pdf | 1.65 MB | Shaun Ewing | Dec 24, 1963 00:00 |
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US-3115552-A // Telephone switching system // Fulwiler Edward R. ; Hayes Richard L. ; Masucci Eugene D. ; Wilson Warren M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.65 MB | Shaun Ewing | Dec 24, 1963 00:00 | US-3115552-A // Telephone switching system // Fulwiler Edward R. ; Hayes Richard L. ; Masucci Eugene D. ; Wilson Warren M. // American Telephone & Telegraph | ||||
| PDF File 3021398.pdf | 1.65 MB | Shaun Ewing | Feb 13, 1962 00:00 |
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US-3021398-A // Continuous checking of circuit continuity of a signaling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.65 MB | Shaun Ewing | Feb 13, 1962 00:00 | US-3021398-A // Continuous checking of circuit continuity of a signaling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2528269.pdf | 1.64 MB | Shaun Ewing | Oct 31, 1950 00:00 |
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US-2528269-A // Selector switch control for automatic telephone systems // Bois Daniel King Du // American Telephone & Telegraph | |||
| Version 1 (current) | 1.64 MB | Shaun Ewing | Oct 31, 1950 00:00 | US-2528269-A // Selector switch control for automatic telephone systems // Bois Daniel King Du // American Telephone & Telegraph | ||||
| PDF File 2553978.pdf | 1.61 MB | Shaun Ewing | May 22, 1951 00:00 |
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US-2553978-A // Electronic control telegraph repeater for hub circuit operation in telegraph service boards // Neiswinter James Trapp // American Telephone & Telegraph | |||
| Version 1 (current) | 1.61 MB | Shaun Ewing | May 22, 1951 00:00 | US-2553978-A // Electronic control telegraph repeater for hub circuit operation in telegraph service boards // Neiswinter James Trapp // American Telephone & Telegraph | ||||
| PDF File 2401518.pdf | 1.60 MB | Shaun Ewing | Jun 04, 1946 00:00 |
|
US-2401518-A // Power-driven wire reel mechanism // Smith Temple C. ; Brown Howard D. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.60 MB | Shaun Ewing | Jun 04, 1946 00:00 | US-2401518-A // Power-driven wire reel mechanism // Smith Temple C. ; Brown Howard D. // American Telephone & Telegraph | ||||
| PDF File 3214523.pdf | 1.56 MB | Shaun Ewing | Oct 26, 1965 00:00 |
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US-3214523-A // Automatic telephone system with camp-on facilities // Hess Bobby L. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Oct 26, 1965 00:00 | US-3214523-A // Automatic telephone system with camp-on facilities // Hess Bobby L. // American Telephone & Telegraph | ||||
| PDF File 2293611.pdf | 1.51 MB | Shaun Ewing | Aug 18, 1942 00:00 |
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US-2293611-A // Telephone system // Meeds Lloyd T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Aug 18, 1942 00:00 | US-2293611-A // Telephone system // Meeds Lloyd T. // American Telephone & Telegraph | ||||
| PDF File 2334574.pdf | 1.47 MB | Shaun Ewing | Nov 16, 1943 00:00 |
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US-2334574-A // Selective signaling system // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Nov 16, 1943 00:00 | US-2334574-A // Selective signaling system // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2892888.pdf | 1.47 MB | Shaun Ewing | Jun 30, 1959 00:00 |
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US-2892888-A // Digital system with error elimination // James Richard T. ; Ruppel Alfred E. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Jun 30, 1959 00:00 | US-2892888-A // Digital system with error elimination // James Richard T. ; Ruppel Alfred E. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 3038031.pdf | 1.45 MB | Shaun Ewing | Jun 05, 1962 00:00 |
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US-3038031-A // Permutation code selecting circuit // Clark Orville A. ; Maxwell John L. ; Thompson Harold K. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.45 MB | Shaun Ewing | Jun 05, 1962 00:00 | US-3038031-A // Permutation code selecting circuit // Clark Orville A. ; Maxwell John L. ; Thompson Harold K. // American Telephone & Telegraph | ||||
| PDF File 2321372.pdf | 1.44 MB | Shaun Ewing | Jun 08, 1943 00:00 |
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US-2321372-A // Telegraphic auction system // Duncan James Archibald // American Telephone & Telegraph | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Jun 08, 1943 00:00 | US-2321372-A // Telegraphic auction system // Duncan James Archibald // American Telephone & Telegraph | ||||
| PDF File 3050584.pdf | 1.43 MB | Shaun Ewing | Aug 21, 1962 00:00 |
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US-3050584-A // Conference telephone apparatus // Miller Wade M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | Aug 21, 1962 00:00 | US-3050584-A // Conference telephone apparatus // Miller Wade M. // American Telephone & Telegraph | ||||
| PDF File 3020525.pdf | 1.42 MB | Shaun Ewing | Feb 06, 1962 00:00 |
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US-3020525-A // Record controlled translator // Garrison Richard J. ; Henches Eugene W. ; Spiro George // American Telephone & Telegraph | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Feb 06, 1962 00:00 | US-3020525-A // Record controlled translator // Garrison Richard J. ; Henches Eugene W. ; Spiro George // American Telephone & Telegraph | ||||
| PDF File 2664466.pdf | 1.40 MB | Shaun Ewing | Dec 29, 1953 00:00 |
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US-2664466-A // Multiway telegraph repeater system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 1.40 MB | Shaun Ewing | Dec 29, 1953 00:00 | US-2664466-A // Multiway telegraph repeater system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2955151.pdf | 1.38 MB | Shaun Ewing | Oct 04, 1960 00:00 |
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US-2955151-A // Teletypewriter switching system // Semancik Joseph T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.38 MB | Shaun Ewing | Oct 04, 1960 00:00 | US-2955151-A // Teletypewriter switching system // Semancik Joseph T. // American Telephone & Telegraph | ||||
| PDF File 2293588.pdf | 1.37 MB | Shaun Ewing | Aug 18, 1942 00:00 |
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US-2293588-A // Telephone system // Cain George Leland ; Soucy Harold Arthur // American Telephone & Telegraph | |||
| Version 1 (current) | 1.37 MB | Shaun Ewing | Aug 18, 1942 00:00 | US-2293588-A // Telephone system // Cain George Leland ; Soucy Harold Arthur // American Telephone & Telegraph | ||||
| PDF File 3387091.pdf | 1.35 MB | Shaun Ewing | Jun 04, 1968 00:00 |
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US-3387091-A // Alarm system for telephone pay stations // Deiker Robert W. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Jun 04, 1968 00:00 | US-3387091-A // Alarm system for telephone pay stations // Deiker Robert W. // American Telephone & Telegraph |
