Name Size Creator Creation Date Labels Comment  
PDF File 2073752.pdf 1.04 MB Shaun Ewing Mar 16, 1937 00:00
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US-2073752-A // Telephone system // Norton John Ernest // American Telephone & Telegraph
PDF File 1921072.pdf 1.04 MB Shaun Ewing Aug 08, 1933 00:00
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US-1921072-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph
PDF File 1871906.pdf 1.03 MB Shaun Ewing Aug 16, 1932 00:00
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US-1871906-A // Concentric shield for cables // Nyquist Harry // American Telephone & Telegraph
PDF File 2027463.pdf 1.03 MB Shaun Ewing Jan 14, 1936 00:00
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US-2027463-A // Telephone system // Bascom Henry Melvin ; Friend Otto Albert // American Telephone & Telegraph
PDF File 2134068.pdf 1.03 MB Shaun Ewing Oct 25, 1938 00:00
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US-2134068-A // Start-stop printing telegraph system // Williams Hollie Cyrus // American Telephone & Telegraph
PDF File 2034047.pdf 1.02 MB Shaun Ewing Mar 17, 1936 00:00
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US-2034047-A // Coaxial circuit with stranded inner conductor // Leibe Frank A. ; Rogers Theodore C. // American Telephone & Telegraph
PDF File 1843189.pdf 1.02 MB Shaun Ewing Feb 02, 1932 00:00
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US-1843189-A // Radio telephone and telegraph system // Bailey Austin // American Telephone & Telegraph
PDF File 1919309.pdf 1.02 MB Shaun Ewing Jul 25, 1933 00:00
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US-1919309-A // Apparatus and method for radio transmission and reception // Stone John Stone // American Telephone & Telegraph
PDF File 2064938.pdf 1.02 MB Shaun Ewing Dec 22, 1936 00:00
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US-2064938-A // Common medium multichannel exchange system // Monk Newton // American Telephone & Telegraph
PDF File 2103439.pdf 1.01 MB Shaun Ewing Dec 28, 1937 00:00
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US-2103439-A // Gas-filled tube // Swart Leland Kasson // American Telephone & Telegraph
PDF File 2129714.pdf 1017 kB Shaun Ewing Sept 13, 1938 00:00
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US-2129714-A // Wave type converter for use with dielectric guides // Southworth George C. // American Telephone & Telegraph
PDF File 1862587.pdf 1010 kB Shaun Ewing Jun 14, 1932 00:00
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US-1862587-A // Signaling arrangement for telephone systems // Almquist Milton L. // American Telephone & Telegraph
PDF File 1870392.pdf 1010 kB Shaun Ewing Aug 09, 1932 00:00
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US-1870392-A // Telegraph printer // Watson Edward F. // 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 1902817.pdf 1004 kB Shaun Ewing Mar 28, 1933 00:00
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US-1902817-A // Communication with moving trains // Affel Herman A. ; Green Estill I. // American Telephone & Telegraph
PDF File 1940370.pdf 1001 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940370-A // Telegraph system // Rea Wilton T. // American Telephone & Telegraph
PDF File 1851072.pdf 1001 kB Shaun Ewing Mar 29, 1932 00:00
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US-1851072-A // Apparatus and method for electrical transmission of pictures // Vernam Gilbert S. ; Watson Edward F. ; Perry Donald B. // American Telephone & Telegraph
PDF File 2101224.pdf 999 kB Shaun Ewing Dec 07, 1937 00:00
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US-2101224-A // Privacy system // Osborne Harold Smith ; Wright Sumner Bisbee // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 2037154.pdf 998 kB Shaun Ewing Apr 14, 1936 00:00
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US-2037154-A // Radio receiving system // Stone John Stone // American Telephone & Telegraph
PDF File 1931867.pdf 995 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931867-A // Battery control system // Holden William H. T. ; Jutson Robert P. ; Larew Joel L. // American Telephone & Telegraph ; Bell Telephone Labor Inc
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