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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1958510.pdf | 343 kB | Shaun Ewing | May 15, 1934 00:00 |
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US-1958510-A // Monitoring circuit // Cowan Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 343 kB | Shaun Ewing | May 15, 1934 00:00 | US-1958510-A // Monitoring circuit // Cowan Frank A. // American Telephone & Telegraph | ||||
| PDF File 1928726.pdf | 343 kB | Shaun Ewing | Oct 03, 1933 00:00 |
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US-1928726-A // Wire arrangement in pole line systems // Hunter Russell N. // American Telephone & Telegraph | |||
| Version 1 (current) | 343 kB | Shaun Ewing | Oct 03, 1933 00:00 | US-1928726-A // Wire arrangement in pole line systems // Hunter Russell N. // American Telephone & Telegraph | ||||
| PDF File 1933669.pdf | 342 kB | Shaun Ewing | Nov 07, 1933 00:00 |
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US-1933669-A // Selective antenna circuits // Gilman George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 342 kB | Shaun Ewing | Nov 07, 1933 00:00 | US-1933669-A // Selective antenna circuits // Gilman George W. // American Telephone & Telegraph | ||||
| PDF File 2067696.pdf | 342 kB | Shaun Ewing | Jan 12, 1937 00:00 |
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US-2067696-A // Oscillographic apparatus // Crampton David // American Telephone & Telegraph | |||
| Version 1 (current) | 342 kB | Shaun Ewing | Jan 12, 1937 00:00 | US-2067696-A // Oscillographic apparatus // Crampton David // American Telephone & Telegraph | ||||
| PDF File 1814018.pdf | 341 kB | Shaun Ewing | Jul 14, 1931 00:00 |
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US-1814018-A // Means for controlling sensitivity of voice operated devices // Wright Sumner B. ; Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814018-A // Means for controlling sensitivity of voice operated devices // Wright Sumner B. ; Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1802446.pdf | 340 kB | Shaun Ewing | Apr 28, 1931 00:00 |
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US-1802446-A // Telephone system // Schneckloth Harry H. // American Telephone & Telegraph | |||
| Version 1 (current) | 340 kB | Shaun Ewing | Apr 28, 1931 00:00 | US-1802446-A // Telephone system // Schneckloth Harry H. // American Telephone & Telegraph | ||||
| PDF File 1985348.pdf | 340 kB | Shaun Ewing | Dec 25, 1934 00:00 |
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US-1985348-A // Method of locating cable sheath defects // Henneberger Thomas C. // American Telephone & Telegraph | |||
| Version 1 (current) | 340 kB | Shaun Ewing | Dec 25, 1934 00:00 | US-1985348-A // Method of locating cable sheath defects // Henneberger Thomas C. // American Telephone & Telegraph | ||||
| PDF File 1844886.pdf | 340 kB | Shaun Ewing | Feb 09, 1932 00:00 |
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US-1844886-A // Means for measuring time of propagation of wave fronts over circuits // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 340 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844886-A // Means for measuring time of propagation of wave fronts over circuits // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 2076651.pdf | 339 kB | Shaun Ewing | Apr 13, 1937 00:00 |
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US-2076651-A // Telephone system // Kuhn George William // American Telephone & Telegraph | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Apr 13, 1937 00:00 | US-2076651-A // Telephone system // Kuhn George William // American Telephone & Telegraph | ||||
| PDF File 2073003.pdf | 339 kB | Shaun Ewing | Mar 09, 1937 00:00 |
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US-2073003-A // Switchboard cord circuit // Darrow Wirt Edward // American Telephone & Telegraph | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Mar 09, 1937 00:00 | US-2073003-A // Switchboard cord circuit // Darrow Wirt Edward // American Telephone & Telegraph | ||||
| PDF File 1862608.pdf | 339 kB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1862608-A // Arrangement for producing modulated currents // Schimming Harold H. // American Telephone & Telegraph | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Jun 14, 1932 00:00 | US-1862608-A // Arrangement for producing modulated currents // Schimming Harold H. // American Telephone & Telegraph | ||||
| PDF File 1935594.pdf | 338 kB | Shaun Ewing | Nov 14, 1933 00:00 |
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US-1935594-A // Polyphase current generator // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 338 kB | Shaun Ewing | Nov 14, 1933 00:00 | US-1935594-A // Polyphase current generator // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1919300.pdf | 338 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919300-A // Molding // Lewis Edwin // American Telephone & Telegraph | |||
| Version 1 (current) | 338 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919300-A // Molding // Lewis Edwin // American Telephone & Telegraph | ||||
| PDF File 2069369.pdf | 338 kB | Shaun Ewing | Feb 02, 1937 00:00 |
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US-2069369-A // Secret communication system // Hunter Russell Norman // American Telephone & Telegraph | |||
| Version 1 (current) | 338 kB | Shaun Ewing | Feb 02, 1937 00:00 | US-2069369-A // Secret communication system // Hunter Russell Norman // American Telephone & Telegraph | ||||
| PDF File 1852045.pdf | 337 kB | Shaun Ewing | Apr 05, 1932 00:00 |
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US-1852045-A // Signaling arrangement for telephone lines // Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 337 kB | Shaun Ewing | Apr 05, 1932 00:00 | US-1852045-A // Signaling arrangement for telephone lines // Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 2037107.pdf | 335 kB | Shaun Ewing | Apr 14, 1936 00:00 |
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US-2037107-A // Transmission gain control // Abraham Leonard Gladstone // American Telephone & Telegraph | |||
| Version 1 (current) | 335 kB | Shaun Ewing | Apr 14, 1936 00:00 | US-2037107-A // Transmission gain control // Abraham Leonard Gladstone // American Telephone & Telegraph | ||||
| PDF File 1799174.pdf | 334 kB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799174-A // Protective device // Loye Donald P. // American Telephone & Telegraph | |||
| Version 1 (current) | 334 kB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799174-A // Protective device // Loye Donald P. // American Telephone & Telegraph | ||||
| PDF File 1866611.pdf | 334 kB | Shaun Ewing | Jul 12, 1932 00:00 |
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US-1866611-A // Concentric conducting system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 334 kB | Shaun Ewing | Jul 12, 1932 00:00 | US-1866611-A // Concentric conducting system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 2113713.pdf | 334 kB | Shaun Ewing | Apr 12, 1938 00:00 |
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US-2113713-A // Warning device for manholes // Slocum Harvey Francis // American Telephone & Telegraph | |||
| Version 1 (current) | 334 kB | Shaun Ewing | Apr 12, 1938 00:00 | US-2113713-A // Warning device for manholes // Slocum Harvey Francis // American Telephone & Telegraph | ||||
| PDF File 1941627.pdf | 334 kB | Shaun Ewing | Jan 02, 1934 00:00 |
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US-1941627-A // Remote control system // Schramm Fred W. // American Telephone & Telegraph | |||
| Version 1 (current) | 334 kB | Shaun Ewing | Jan 02, 1934 00:00 | US-1941627-A // Remote control system // Schramm Fred W. // American Telephone & Telegraph |
