Name Size Creator Creation Date Labels Comment  
PDF File 2284302.pdf 232 kB Shaun Ewing May 26, 1942 00:00
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US-2284302-A // Support for wires // Roberts Charles William // American Telephone & Telegraph
PDF File 2284296.pdf 391 kB Shaun Ewing May 26, 1942 00:00
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US-2284296-A // Telegraph circuit // Muench Eugene Julius ; Greene Monte Lee // American Telephone & Telegraph
PDF File 2284247.pdf 505 kB Shaun Ewing May 26, 1942 00:00
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US-2284247-A // Radio signaling system // Bagnall Vernon Bernard // American Telephone & Telegraph
PDF File 2278703.pdf 1.76 MB Shaun Ewing Apr 07, 1942 00:00
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US-2278703-A // Teletypewriter recording system // Knittle Gale Leonard // American Telephone & Telegraph
PDF File 2278702.pdf 637 kB Shaun Ewing Apr 07, 1942 00:00
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US-2278702-A // Telephone circuit // Knittle Gale Leonard // American Telephone & Telegraph
PDF File 2278690.pdf 565 kB Shaun Ewing Apr 07, 1942 00:00
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US-2278690-A // Frequency control system // Clarke John L. // American Telephone & Telegraph
PDF File 2278633.pdf 373 kB Shaun Ewing Apr 07, 1942 00:00
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US-2278633-A // Temperature control apparatus // Bagnall Vernon Bernard // American Telephone & Telegraph
PDF File 2269379.pdf 2.73 MB Shaun Ewing Jan 06, 1942 00:00
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US-2269379-A // Teletypewriter switching system // Patton Oscar Mcdonald // American Telephone & Telegraph
PDF File 2269375.pdf 774 kB Shaun Ewing Jan 06, 1942 00:00
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US-2269375-A // Telephone system // Mccown Ray B. ; Schneckloth Harry Howard ; Smith Robert William // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 2269361.pdf 402 kB Shaun Ewing Jan 06, 1942 00:00
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US-2269361-A // Code calling system // Dewire Donald Stevens // American Telephone & Telegraph
PDF File 2269346.pdf 827 kB Shaun Ewing Jan 06, 1942 00:00
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US-2269346-A // Teletypewriter switchboard service observing circuit // Page Harold Frederick ; Richard Robert Louis // American Telephone & Telegraph
PDF File 2269335.pdf 289 kB Shaun Ewing Jan 06, 1942 00:00
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US-2269335-A // Telephone system // Curley Kieran Joseph // American Telephone & Telegraph
PDF File 2265145.pdf 476 kB Shaun Ewing Dec 09, 1941 00:00
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US-2265145-A // Frequency modulator // Clarke John Leonard // American Telephone & Telegraph
PDF File 2265120.pdf 556 kB Shaun Ewing Dec 02, 1941 00:00
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US-2265120-A // Secret signaling system // Perry Donald Burke // American Telephone & Telegraph
PDF File 2265067.pdf 165 kB Shaun Ewing Dec 02, 1941 00:00
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US-2265067-A // Transmission system // Ellestad Irwin M. // American Telephone & Telegraph
PDF File 2265056.pdf 1.21 MB Shaun Ewing Dec 02, 1941 00:00
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US-2265056-A // Radio telephone system // Bowers Albert Franklin // American Telephone & Telegraph
PDF File 2265044.pdf 302 kB Shaun Ewing Dec 02, 1941 00:00
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US-2265044-A // Secrecy system // Osborne Harold S. // American Telephone & Telegraph
PDF File 2262567.pdf 752 kB Shaun Ewing Nov 11, 1941 00:00
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US-2262567-A // Teletypewriter indicating system // Votaw Clarence J. // American Telephone & Telegraph
PDF File 2262543.pdf 786 kB Shaun Ewing Nov 11, 1941 00:00
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US-2262543-A // Communication system // Borgeson Carl Anders // 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
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