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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2030961.pdf | 247 kB | Shaun Ewing | Feb 18, 1936 00:00 |
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US-2030961-A // Operator's telephone circuit // Carter Herman T. // American Telephone & Telegraph | |||
| Version 1 (current) | 247 kB | Shaun Ewing | Feb 18, 1936 00:00 | US-2030961-A // Operator's telephone circuit // Carter Herman T. // American Telephone & Telegraph | ||||
| PDF File 1863675.pdf | 246 kB | Shaun Ewing | Jun 21, 1932 00:00 |
|
US-1863675-A // Means for reducing lightning interference in carrier telegraph circuits // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Jun 21, 1932 00:00 | US-1863675-A // Means for reducing lightning interference in carrier telegraph circuits // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1898921.pdf | 245 kB | Shaun Ewing | Feb 21, 1933 00:00 |
|
US-1898921-A // Remote control system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 245 kB | Shaun Ewing | Feb 21, 1933 00:00 | US-1898921-A // Remote control system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1829837.pdf | 244 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829837-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | |||
| Version 1 (current) | 244 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829837-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | ||||
| PDF File 2038683.pdf | 244 kB | Shaun Ewing | Apr 28, 1936 00:00 |
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US-2038683-A // Pulsating direct current generator // Schramm Fred W. // American Telephone & Telegraph | |||
| Version 1 (current) | 244 kB | Shaun Ewing | Apr 28, 1936 00:00 | US-2038683-A // Pulsating direct current generator // Schramm Fred W. // American Telephone & Telegraph | ||||
| PDF File 1840362.pdf | 243 kB | Shaun Ewing | Jan 12, 1932 00:00 |
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US-1840362-A // Transposition bracket for insulators // Hunter Russell N. ; Stover Herbert F. // American Telephone & Telegraph | |||
| Version 1 (current) | 243 kB | Shaun Ewing | Jan 12, 1932 00:00 | US-1840362-A // Transposition bracket for insulators // Hunter Russell N. ; Stover Herbert F. // American Telephone & Telegraph | ||||
| PDF File 2035559.pdf | 243 kB | Shaun Ewing | Mar 31, 1936 00:00 |
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US-2035559-A // Coin chute // Mahany Augustus Moore // American Telephone & Telegraph | |||
| Version 1 (current) | 243 kB | Shaun Ewing | Mar 31, 1936 00:00 | US-2035559-A // Coin chute // Mahany Augustus Moore // American Telephone & Telegraph | ||||
| PDF File 2025158.pdf | 242 kB | Shaun Ewing | Dec 24, 1935 00:00 |
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US-2025158-A // Modulating system // Cowan Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Dec 24, 1935 00:00 | US-2025158-A // Modulating system // Cowan Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 2017977.pdf | 242 kB | Shaun Ewing | Oct 22, 1935 00:00 |
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US-2017977-A // Automatic bias eliminator // Ladner Henry // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Oct 22, 1935 00:00 | US-2017977-A // Automatic bias eliminator // Ladner Henry // American Telephone & Telegraph | ||||
| PDF File 1964849.pdf | 241 kB | Shaun Ewing | Jul 03, 1934 00:00 |
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US-1964849-A // Wire support // Gordon George B. ; Dahl Harold A. C. // American Telephone & Telegraph | |||
| Version 1 (current) | 241 kB | Shaun Ewing | Jul 03, 1934 00:00 | US-1964849-A // Wire support // Gordon George B. ; Dahl Harold A. C. // American Telephone & Telegraph | ||||
| PDF File 1938741.pdf | 236 kB | Shaun Ewing | Dec 12, 1933 00:00 |
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US-1938741-A // Gas-filled discharge tube // Demarest Charles Sidney // American Telephone & Telegraph | |||
| Version 1 (current) | 236 kB | Shaun Ewing | Dec 12, 1933 00:00 | US-1938741-A // Gas-filled discharge tube // Demarest Charles Sidney // American Telephone & Telegraph | ||||
| PDF File 1829836.pdf | 234 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829836-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | |||
| Version 1 (current) | 234 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829836-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | ||||
| PDF File 2069932.pdf | 234 kB | Shaun Ewing | Feb 09, 1937 00:00 |
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US-2069932-A // Electrical system // Wintringham William Tylee // American Telephone & Telegraph | |||
| Version 1 (current) | 234 kB | Shaun Ewing | Feb 09, 1937 00:00 | US-2069932-A // Electrical system // Wintringham William Tylee // American Telephone & Telegraph | ||||
| PDF File 1838278.pdf | 232 kB | Shaun Ewing | Dec 29, 1931 00:00 |
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US-1838278-A // Spanner wrench // Montagnon Jule // American Telephone & Telegraph | |||
| Version 1 (current) | 232 kB | Shaun Ewing | Dec 29, 1931 00:00 | US-1838278-A // Spanner wrench // Montagnon Jule // American Telephone & Telegraph | ||||
| PDF File 2037150.pdf | 231 kB | Shaun Ewing | Apr 14, 1936 00:00 |
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US-2037150-A // Error indicator for open-wire circuits // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 231 kB | Shaun Ewing | Apr 14, 1936 00:00 | US-2037150-A // Error indicator for open-wire circuits // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 2033265.pdf | 230 kB | Shaun Ewing | Mar 10, 1936 00:00 |
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US-2033265-A // Annunciator system // Tradup Albert // American Telephone & Telegraph | |||
| Version 1 (current) | 230 kB | Shaun Ewing | Mar 10, 1936 00:00 | US-2033265-A // Annunciator system // Tradup Albert // American Telephone & Telegraph | ||||
| PDF File 1947621.pdf | 230 kB | Shaun Ewing | Feb 20, 1934 00:00 |
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US-1947621-A // Reverberation circuit // Schreiber Ernst H. // American Telephone & Telegraph | |||
| Version 1 (current) | 230 kB | Shaun Ewing | Feb 20, 1934 00:00 | US-1947621-A // Reverberation circuit // Schreiber Ernst H. // American Telephone & Telegraph | ||||
| PDF File 2063148.pdf | 230 kB | Shaun Ewing | Dec 08, 1936 00:00 |
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US-2063148-A // Reproduction of sound // Bischoff Charles Frederick ; Herckmans Alfred // American Telephone & Telegraph | |||
| Version 1 (current) | 230 kB | Shaun Ewing | Dec 08, 1936 00:00 | US-2063148-A // Reproduction of sound // Bischoff Charles Frederick ; Herckmans Alfred // American Telephone & Telegraph | ||||
| PDF File 1832996.pdf | 228 kB | Shaun Ewing | Nov 24, 1931 00:00 |
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US-1832996-A // Grade clamp // Percival Harry S. ; Bartlett Henry H. // American Telephone & Telegraph | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Nov 24, 1931 00:00 | US-1832996-A // Grade clamp // Percival Harry S. ; Bartlett Henry H. // American Telephone & Telegraph | ||||
| PDF File 1966569.pdf | 228 kB | Shaun Ewing | Jul 17, 1934 00:00 |
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US-1966569-A // Portable lamp // Voorhees Stephen Francis // American Telephone & Telegraph | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Jul 17, 1934 00:00 | US-1966569-A // Portable lamp // Voorhees Stephen Francis // American Telephone & Telegraph |
