Name Size Creator Creation Date Labels Comment  
PDF File 2084422.pdf 785 kB Shaun Ewing Jun 22, 1937 00:00
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US-2084422-A // Telephone transmission circuit // Wright Sumner Bisbee // American Telephone & Telegraph
PDF File 2084121.pdf 1.16 MB Shaun Ewing Jun 15, 1937 00:00
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US-2084121-A // Prepayment telephone system // Anderson Emil N. ; Bascom Henry M. ; Getz Emil L. ; Jr. George Sandalls, // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 2083666.pdf 1.18 MB Shaun Ewing Jun 15, 1937 00:00
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US-2083666-A // High frequency signaling system // Potter Ralph Kimball // American Telephone & Telegraph
PDF File 2083645.pdf 425 kB Shaun Ewing Jun 15, 1937 00:00
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US-2083645-A // Transmission system // Fracassi Renato Dario // American Telephone & Telegraph
PDF File 2082924.pdf 830 kB Shaun Ewing Jun 08, 1937 00:00
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US-2082924-A // Printing telegraph system // Watson Edward Fisk // American Telephone & Telegraph
PDF File 2082911.pdf 887 kB Shaun Ewing Jun 08, 1937 00:00
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US-2082911-A // Switch // Schneckloth Harry Howard // American Telephone & Telegraph
PDF File 2082877.pdf 1.12 MB Shaun Ewing Jun 08, 1937 00:00
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US-2082877-A // Multiplex communication signaling system // Durand Samuel Relf // American Telephone & Telegraph
PDF File 2082104.pdf 1.12 MB Shaun Ewing Jun 01, 1937 00:00
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US-2082104-A // Testing system // Gibson Earl S. ; Hansen Arnold A. ; Worth John B. // Bell Telephone Labor Inc ; American Telephone & Telegraph
PDF File 2082077.pdf 722 kB Shaun Ewing Jun 01, 1937 00:00
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US-2082077-A // Selective signaling system // Newby Neal Dow ; Moody Dwight Lyman // American Telephone & Telegraph
PDF File 2082075.pdf 1008 kB Shaun Ewing Jun 01, 1937 00:00
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US-2082075-A // Printing telegraph system // Mowton Edward M. // American Telephone & Telegraph
PDF File 2081312.pdf 460 kB Shaun Ewing May 25, 1937 00:00
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US-2081312-A // Carrier telegraph system // Thorp Vaughn P. // American Telephone & Telegraph
PDF File 2080527.pdf 204 kB Shaun Ewing May 18, 1937 00:00
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US-2080527-A // Ladder holder // Bixel Edward Carl // American Telephone & Telegraph
PDF File 2080524.pdf 605 kB Shaun Ewing May 18, 1937 00:00
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US-2080524-A // Paper feeding apparatus for typing devices // Allen Howard D. // American Telephone & Telegraph
PDF File 2079723.pdf 484 kB Shaun Ewing May 11, 1937 00:00
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US-2079723-A // Electrical protective system // Swart Leland Kasson // American Telephone & Telegraph
PDF File 2077537.pdf 892 kB Shaun Ewing Apr 20, 1937 00:00
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US-2077537-A // System for tracing telephone calls // Taylor John W. // American Telephone & Telegraph
PDF File 2077510.pdf 268 kB Shaun Ewing Apr 20, 1937 00:00
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US-2077510-A // Spring contact gauge // Boehler John D. ; Sidur Robert Alexander // 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
PDF File 2076637.pdf 370 kB Shaun Ewing Apr 13, 1937 00:00
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US-2076637-A // Telephone substation apparatus // Harlow Leonard M. ; Mapes Charles M. // American Telephone & Telegraph
PDF File 2075927.pdf 556 kB Shaun Ewing Apr 06, 1937 00:00
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US-2075927-A // Shielding system // Bowen Arnold Everett // American Telephone & Telegraph
PDF File 2075920.pdf 485 kB Shaun Ewing Apr 06, 1937 00:00
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US-2075920-A // Shielding system // Wascheck George // American Telephone & Telegraph
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