Name Size Creator Creation Date Labels Comment  
PDF File 2257553.pdf 597 kB Shaun Ewing Sept 30, 1941 00:00
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US-2257553-A // Ribbon reverse mechanism // Hept John Anthony // American Telephone & Telegraph
PDF File 2244041.pdf 591 kB Shaun Ewing Jun 03, 1941 00:00
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US-2244041-A // Transmission measuring system // Andrews Joseph Frank // American Telephone & Telegraph
PDF File 3377441.pdf 590 kB Shaun Ewing Apr 09, 1968 00:00
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US-3377441-A // Delay equalizer computer // Bomar Howard E. ; Cline Harry A. // American Telephone & Telegraph
PDF File 4542439.pdf 587 kB Shaun Ewing Sept 17, 1985 00:00
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US-4542439-A // Surface mount component // Dick; Bernard M. // At&t Technologies, Inc.
PDF File 2409632.pdf 587 kB Shaun Ewing Oct 22, 1946 00:00
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US-2409632-A // Guiding means for self-propelled torpedoes // King Robert W. // American Telephone & Telegraph
PDF File 2367062.pdf 584 kB Shaun Ewing Jan 09, 1945 00:00
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US-2367062-A // Telephone system // Schroeppel Harold Henry // American Telephone & Telegraph
PDF File 3105882.pdf 575 kB Shaun Ewing Oct 01, 1963 00:00
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US-3105882-A // Pressure transducer testing circuit // Meyer William C. // American Telephone & Telegraph
PDF File 2418395.pdf 574 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418395-A // Control apparatus for forced drainage // Carlson Eric Gustav // American Telephone & Telegraph
PDF File 2726281.pdf 569 kB Shaun Ewing Dec 06, 1955 00:00
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US-2726281-A // Telegraph code signal transmitter // Hanley Frank Harold // American Telephone & Telegraph
PDF File 2913526.pdf 568 kB Shaun Ewing Nov 17, 1959 00:00
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US-2913526-A // Calling station identification circuit // Smits John M. ; Sturtevant Michael J. // American Telephone & Telegraph
PDF File 2707778.pdf 567 kB Shaun Ewing May 03, 1955 00:00
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US-2707778-A // Control circuit with answer back and supervisory signals // Neiswinter James T. // American Telephone & Telegraph
PDF File 2299969.pdf 567 kB Shaun Ewing Oct 27, 1942 00:00
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US-2299969-A // Signaling arrangement for telegraph systems // Egner Robert James ; Walker Charles Robert // American Telephone & Telegraph
PDF File 2315383.pdf 567 kB Shaun Ewing Mar 30, 1943 00:00
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US-2315383-A // Method and apparatus for locating transmission faults // Andrews Joseph Frank // 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 2513400.pdf 564 kB Shaun Ewing Jul 04, 1950 00:00
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US-2513400-A // Digit absorbing selector // Carson Arthur ; Cronk Earle Tabor // American Telephone & Telegraph
PDF File 3056855.pdf 563 kB Shaun Ewing Oct 02, 1962 00:00
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US-3056855-A // Code translator // Yeoman John A. // American Telephone & Telegraph
PDF File 4537799.pdf 562 kB Shaun Ewing Aug 27, 1985 00:00
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US-4537799-A // Selective metallization process // Dorey, Ii; John K. ; Schmidt; Steven L. ; Townsend; Wesley P. // At&t Technologies, Inc.
PDF File 2414624.pdf 561 kB Shaun Ewing Jan 21, 1947 00:00
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US-2414624-A // Apparatus for testing transmission lines // Fisher Austin // American Telephone & Telegraph
PDF File 2376225.pdf 561 kB Shaun Ewing May 15, 1945 00:00
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US-2376225-A // Telegraph transmission measuring system // Beyland Sidney W. // American Telephone & Telegraph
PDF File 2965716.pdf 558 kB Shaun Ewing Dec 20, 1960 00:00
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US-2965716-A // Telegraph switching apparatus // Prince George E. // American Telephone & Telegraph
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