Name Size Creator Creation Date Labels Comment  
PDF File 2139678.pdf 899 kB Shaun Ewing Dec 13, 1938 00:00
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US-2139678-A // Electron discharge device // Glass Myron S. // Bell Telephone Labor Inc
PDF File 2028194.pdf 899 kB Shaun Ewing Jan 21, 1936 00:00
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US-2028194-A // Printing telegraph system // Corwin Thomas L. // Bell Telephone Labor Inc
PDF File 1865165.pdf 899 kB Shaun Ewing Jun 28, 1932 00:00
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US-1865165-A // Transmission control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc
PDF File 1905704.pdf 897 kB Shaun Ewing Apr 25, 1933 00:00
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US-1905704-A // Acoustic device // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2185283.pdf 896 kB Shaun Ewing Jan 02, 1940 00:00
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US-2185283-A // Cathode ray discharge device // Weinhart Howard W. // Bell Telephone Labor Inc
PDF File 2031942.pdf 895 kB Shaun Ewing Feb 25, 1936 00:00
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US-2031942-A // Control circuit // Duguid James M. ; Sole John H. // Bell Telephone Labor Inc
PDF File 1946223.pdf 893 kB Shaun Ewing Feb 06, 1934 00:00
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US-1946223-A // Translating device // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2165517.pdf 893 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165517-A // Oscillation generator // Stevenson George H. // Bell Telephone Labor Inc
PDF File 1856714.pdf 892 kB Shaun Ewing May 03, 1932 00:00
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US-1856714-A // Printing telegraph radial switching system // Locke George A. // Bell Telephone Labor Inc
PDF File 1919046.pdf 891 kB Shaun Ewing Jul 18, 1933 00:00
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US-1919046-A // Selective calling circuits // Scriven Edward O. // Bell Telephone Labor Inc
PDF File 2128420.pdf 891 kB Shaun Ewing Aug 30, 1938 00:00
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US-2128420-A // Piezoelectric crystal mounting // Laskey William G. // Bell Telephone Labor Inc
PDF File 2226258.pdf 890 kB Shaun Ewing Dec 24, 1940 00:00
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US-2226258-A // Grid bias modulating system // Reise Herman A. ; Skene Andrew A. // Bell Telephone Labor Inc
PDF File 1795647.pdf 889 kB Shaun Ewing Mar 10, 1931 00:00
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US-1795647-A // Method and apparatus for measuring acoustical impedances // Flanders Paul B. // Bell Telephone Labor Inc
PDF File 1857819.pdf 889 kB Shaun Ewing May 10, 1932 00:00
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US-1857819-A // Radio telephone system // Merriam Francis F. // Bell Telephone Labor Inc
PDF File 1873283.pdf 888 kB Shaun Ewing Aug 23, 1932 00:00
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US-1873283-A // Telegraph repeater // Burton Everett T. // Bell Telephone Labor Inc
PDF File 2147690.pdf 888 kB Shaun Ewing Feb 21, 1939 00:00
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US-2147690-A // Telegraph repeater // Cramer Walter W. ; Cummings George C. // Bell Telephone Labor Inc
PDF File 2163403.pdf 887 kB Shaun Ewing Jun 20, 1939 00:00
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US-2163403-A // Stabilized oscillator // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 1849656.pdf 887 kB Shaun Ewing Mar 15, 1932 00:00
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US-1849656-A // Transmission network // Bennett William R. // Bell Telephone Labor Inc
PDF File 2045971.pdf 886 kB Shaun Ewing Jun 30, 1936 00:00
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US-2045971-A // Switching mechanism // Stockfleth Sigurd J. // Bell Telephone Labor Inc
PDF File 2155515.pdf 886 kB Shaun Ewing Apr 25, 1939 00:00
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US-2155515-A // Regulator system // Trucksess David E. // Bell Telephone Labor Inc
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