Name Size Creator Creation Date Labels Comment  
PDF File 1816905.pdf 741 kB Shaun Ewing Aug 04, 1931 00:00
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US-1816905-A // Communication system // Horton Joseph W. // Bell Telephone Labor Inc
PDF File 2119212.pdf 741 kB Shaun Ewing May 31, 1938 00:00
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US-2119212-A // Volume indicator // Kahl Henry // Bell Telephone Labor Inc
PDF File 2139685.pdf 740 kB Shaun Ewing Dec 13, 1938 00:00
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US-2139685-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc
PDF File 2137036.pdf 739 kB Shaun Ewing Nov 15, 1938 00:00
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US-2137036-A // Transmission system // Taylor Edmund R. // Bell Telephone Labor Inc
PDF File 2183204.pdf 739 kB Shaun Ewing Dec 12, 1939 00:00
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US-2183204-A // Electro-optical system // Reynolds Frederick W. // Bell Telephone Labor Inc
PDF File 2133434.pdf 739 kB Shaun Ewing Oct 18, 1938 00:00
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US-2133434-A // Electric discharge device // Depew Charles ; Roncl Victor L. // Bell Telephone Labor Inc
PDF File 1837373.pdf 738 kB Shaun Ewing Dec 22, 1931 00:00
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US-1837373-A // Glass working machine // Ronci Victor L. // Bell Telephone Labor Inc
PDF File 1981668.pdf 738 kB Shaun Ewing Nov 20, 1934 00:00
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US-1981668-A // Electron discharge device // Ronci Victor L. // Bell Telephone Labor Inc
PDF File 1917007.pdf 738 kB Shaun Ewing Jul 04, 1933 00:00
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US-1917007-A // Sound translating device // Atkins George E. // Bell Telephone Labor Inc
PDF File 2096436.pdf 738 kB Shaun Ewing Oct 19, 1937 00:00
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US-2096436-A // Telephone system // Massonncau Robert F. // Bell Telephone Labor Inc
PDF File 2196173.pdf 738 kB Shaun Ewing Apr 09, 1940 00:00
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US-2196173-A // Communication system // Black Harold S. // Bell Telephone Labor Inc
PDF File 2227093.pdf 738 kB Shaun Ewing Dec 31, 1940 00:00
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US-2227093-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc
PDF File 2092515.pdf 737 kB Shaun Ewing Sept 07, 1937 00:00
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US-2092515-A // Insulator // Jervey William T. // Bell Telephone Labor Inc
PDF File 2133832.pdf 737 kB Shaun Ewing Oct 18, 1938 00:00
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US-2133832-A // System for compensating for differences in potential // Pullis George A. // Bell Telephone Labor Inc
PDF File 2103468.pdf 737 kB Shaun Ewing Dec 28, 1937 00:00
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US-2103468-A // Wave translating system // Jr. John G. Kreer, // Bell Telephone Labor Inc
PDF File 2207253.pdf 737 kB Shaun Ewing Jul 09, 1940 00:00
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US-2207253-A // Measuring and indicating circuits // Hawks Verl J. // Bell Telephone Labor Inc
PDF File 2192986.pdf 737 kB Shaun Ewing Mar 12, 1940 00:00
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US-2192986-A // Variable condenser // Rodgers Karl F. // Bell Telephone Labor Inc
PDF File 2029018.pdf 737 kB Shaun Ewing Jan 28, 1936 00:00
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US-2029018-A // Telephone system // Cruickshank John E. // Bell Telephone Labor Inc
PDF File 1974082.pdf 736 kB Shaun Ewing Sept 18, 1934 00:00
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US-1974082-A // Regulator system // Morton Edmund R. // Bell Telephone Labor Inc
PDF File 2086603.pdf 736 kB Shaun Ewing Jul 13, 1937 00:00
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US-2086603-A // Neutralizing system // Cash Claude C. // Bell Telephone Labor Inc
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