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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2421970.pdf | 1.34 MB | Shaun Ewing | Jun 10, 1947 00:00 |
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US-2421970-A // Earth boring machine // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Jun 10, 1947 00:00 | US-2421970-A // Earth boring machine // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 2568019.pdf | 1.32 MB | Shaun Ewing | Sept 18, 1951 00:00 |
|
US-2568019-A // Telegraph signal biasing set // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Sept 18, 1951 00:00 | US-2568019-A // Telegraph signal biasing set // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2307896.pdf | 1.30 MB | Shaun Ewing | Jan 12, 1943 00:00 |
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US-2307896-A // System for indicating circuit faults in transmission systems // Neiswinter James T. ; Featheringham Lee Roy // American Telephone & Telegraph | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Jan 12, 1943 00:00 | US-2307896-A // System for indicating circuit faults in transmission systems // Neiswinter James T. ; Featheringham Lee Roy // American Telephone & Telegraph | ||||
| PDF File 3043905.pdf | 1.30 MB | Shaun Ewing | Jul 10, 1962 00:00 |
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US-3043905-A // Tandem transmitter start system // Semancik Joseph T. ; Walker Charles R. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Jul 10, 1962 00:00 | US-3043905-A // Tandem transmitter start system // Semancik Joseph T. ; Walker Charles R. // American Telephone & Telegraph | ||||
| PDF File 2350146.pdf | 1.29 MB | Shaun Ewing | May 30, 1944 00:00 |
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US-2350146-A // Telegraphic auction system // Borgeson Carl Anders // American Telephone & Telegraph | |||
| Version 1 (current) | 1.29 MB | Shaun Ewing | May 30, 1944 00:00 | US-2350146-A // Telegraphic auction system // Borgeson Carl Anders // American Telephone & Telegraph | ||||
| PDF File 2306231.pdf | 1.28 MB | Shaun Ewing | Dec 22, 1942 00:00 |
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US-2306231-A // Coupling apparatus for vehicles // Smith Temple Clifford ; Freeman Albert Edward // American Telephone & Telegraph | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Dec 22, 1942 00:00 | US-2306231-A // Coupling apparatus for vehicles // Smith Temple Clifford ; Freeman Albert Edward // American Telephone & Telegraph | ||||
| PDF File 2301837.pdf | 1.28 MB | Shaun Ewing | Nov 10, 1942 00:00 |
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US-2301837-A // Testing arrangement for trunks to community dial offices // Wiley Mason Bain ; Forester Anthony // American Telephone & Telegraph | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Nov 10, 1942 00:00 | US-2301837-A // Testing arrangement for trunks to community dial offices // Wiley Mason Bain ; Forester Anthony // American Telephone & Telegraph | ||||
| PDF File 3179750.pdf | 1.27 MB | Shaun Ewing | Apr 20, 1965 00:00 |
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US-3179750-A // Pbx in-dialing circuit // Reilly William M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | Apr 20, 1965 00:00 | US-3179750-A // Pbx in-dialing circuit // Reilly William M. // American Telephone & Telegraph | ||||
| PDF File 2569926.pdf | 1.27 MB | Shaun Ewing | Oct 02, 1951 00:00 |
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US-2569926-A // Two-wire double commutation telegraph system // Fay Frank H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | Oct 02, 1951 00:00 | US-2569926-A // Two-wire double commutation telegraph system // Fay Frank H. // American Telephone & Telegraph | ||||
| PDF File 2638497.pdf | 1.27 MB | Shaun Ewing | May 12, 1953 00:00 |
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US-2638497-A // Telegraph call transferring system // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | May 12, 1953 00:00 | US-2638497-A // Telegraph call transferring system // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2471087.pdf | 1.26 MB | Shaun Ewing | May 24, 1949 00:00 |
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US-2471087-A // Toll operator control for telephone coin collectors // Anderson Gustave Adolph // American Telephone & Telegraph | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | May 24, 1949 00:00 | US-2471087-A // Toll operator control for telephone coin collectors // Anderson Gustave Adolph // American Telephone & Telegraph | ||||
| PDF File 2401475.pdf | 1.26 MB | Shaun Ewing | Jun 04, 1946 00:00 |
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US-2401475-A // Teletypewriter secrecy system // Gammell Ernest Osmond // American Telephone & Telegraph | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Jun 04, 1946 00:00 | US-2401475-A // Teletypewriter secrecy system // Gammell Ernest Osmond // American Telephone & Telegraph | ||||
| PDF File 2383908.pdf | 1.26 MB | Shaun Ewing | Aug 28, 1945 00:00 |
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US-2383908-A // Radio telephone system // Bowers Albert Franklin // American Telephone & Telegraph | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Aug 28, 1945 00:00 | US-2383908-A // Radio telephone system // Bowers Albert Franklin // American Telephone & Telegraph | ||||
| PDF File 3156773.pdf | 1.25 MB | Shaun Ewing | Nov 10, 1964 00:00 |
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US-3156773-A // Telephone message unit recording system // Freericks Lambert ; Kukasch Herbert L. ; Luzon Thomas B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Nov 10, 1964 00:00 | US-3156773-A // Telephone message unit recording system // Freericks Lambert ; Kukasch Herbert L. ; Luzon Thomas B. // American Telephone & Telegraph | ||||
| PDF File 3347990.pdf | 1.25 MB | Shaun Ewing | Oct 17, 1967 00:00 |
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US-3347990-A // Stock quotation switching system utilizing calling rate detection means // Doyle James J. ; Sarka August J. ; Tancredi Frederick C. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Oct 17, 1967 00:00 | US-3347990-A // Stock quotation switching system utilizing calling rate detection means // Doyle James J. ; Sarka August J. ; Tancredi Frederick C. // American Telephone & Telegraph | ||||
| PDF File 2501883.pdf | 1.25 MB | Shaun Ewing | Mar 28, 1950 00:00 |
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US-2501883-A // Electronic frequency control for radio receivers // Weaver Charles Earl // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Mar 28, 1950 00:00 | US-2501883-A // Electronic frequency control for radio receivers // Weaver Charles Earl // American Telephone & Telegraph | ||||
| PDF File 2301828.pdf | 1.25 MB | Shaun Ewing | Nov 10, 1942 00:00 |
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US-2301828-A // Frequency sensitive elements // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Nov 10, 1942 00:00 | US-2301828-A // Frequency sensitive elements // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 3021397.pdf | 1.24 MB | Shaun Ewing | Feb 13, 1962 00:00 |
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US-3021397-A // Repeater for checking circuit continuity of a siganling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Feb 13, 1962 00:00 | US-3021397-A // Repeater for checking circuit continuity of a siganling system // Barnett Cecil H. ; Large Wayne V. K. ; Pruden Harold M. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 3301967.pdf | 1.24 MB | Shaun Ewing | Jan 31, 1967 00:00 |
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US-3301967-A // Automatic call transmitter for repertory dialing using multifreqency pulses // Plyer Roger A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Jan 31, 1967 00:00 | US-3301967-A // Automatic call transmitter for repertory dialing using multifreqency pulses // Plyer Roger A. // American Telephone & Telegraph | ||||
| PDF File 2232891.pdf | 1.24 MB | Shaun Ewing | Feb 25, 1941 00:00 |
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US-2232891-A // Condenser telephone transmitter circuit // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Feb 25, 1941 00:00 | US-2232891-A // Condenser telephone transmitter circuit // Stone John Stone // American Telephone & Telegraph |
