Name Size Creator Creation Date Labels Comment  
PDF File 2303555.pdf 895 kB Shaun Ewing Dec 01, 1942 00:00
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US-2303555-A // Hot plate device // Humphrey Robert G. // Bell Telephone Labor Inc
PDF File 2370239.pdf 894 kB Shaun Ewing Feb 27, 1945 00:00
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US-2370239-A // Special service telephone system // Friend Otto A. // Bell Telephone Labor Inc
PDF File 2298519.pdf 892 kB Shaun Ewing Oct 13, 1942 00:00
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US-2298519-A // Telephone system // Tillman Richard J. // Bell Telephone Labor Inc
PDF File 2387652.pdf 892 kB Shaun Ewing Oct 23, 1945 00:00
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US-2387652-A // Signal transmission system // Dickieson Alton C. // Bell Telephone Labor Inc
PDF File 2304856.pdf 891 kB Shaun Ewing Dec 15, 1942 00:00
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US-2304856-A // Electrical transmission system // Snow William B. // Bell Telephone Labor Inc
PDF File 2233487.pdf 889 kB Shaun Ewing Mar 04, 1941 00:00
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US-2233487-A // Gain control circuits // Robertson Donald D. // Bell Telephone Labor Inc
PDF File 2288049.pdf 888 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288049-A // Telephone set circuit // Tillman Richard J. ; Zinn Manvel K. // Bell Telephone Labor Inc
PDF File 2263320.pdf 887 kB Shaun Ewing Nov 18, 1941 00:00
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US-2263320-A // Power supply circuit employing electrical converters // Trucksess David E. // Bell Telephone Labor Inc
PDF File 2259284.pdf 886 kB Shaun Ewing Oct 14, 1941 00:00
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US-2259284-A // Sweep circuits // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc
PDF File 2288025.pdf 885 kB Shaun Ewing Jun 30, 1942 00:00
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US-2288025-A // Automatic frequency control system // Pomeroy Allen F. // Bell Telephone Labor Inc
PDF File 2233061.pdf 883 kB Shaun Ewing Feb 25, 1941 00:00
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US-2233061-A // Control of distortion // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2259000.pdf 882 kB Shaun Ewing Oct 14, 1941 00:00
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US-2259000-A // Transmission of frequency modulated waves // Nyquist Harry // Bell Telephone Labor Inc
PDF File 2306852.pdf 880 kB Shaun Ewing Dec 29, 1942 00:00
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US-2306852-A // Vibration damping means for rotating members // Wente Edward C. // Bell Telephone Labor Inc
PDF File 2231542.pdf 880 kB Shaun Ewing Feb 11, 1941 00:00
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US-2231542-A // Transmission control circuit // Mallinckrodt Charles O. // Bell Telephone Labor Inc
PDF File 2305496.pdf 875 kB Shaun Ewing Dec 15, 1942 00:00
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US-2305496-A // Radio broadcasting system // Roberts Leland C. // Bell Telephone Labor Inc
PDF File 2315705.pdf 874 kB Shaun Ewing Apr 06, 1943 00:00
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US-2315705-A // Testing and selecting system // Holden William H. T. ; Schimpf Luther G. // Bell Telephone Labor Inc
PDF File 2361593.pdf 874 kB Shaun Ewing Oct 31, 1944 00:00
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US-2361593-A // Transmission regulation // Black Harold S. // Bell Telephone Labor Inc
PDF File 2245605.pdf 873 kB Shaun Ewing Jun 17, 1941 00:00
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US-2245605-A // Electron multiplier // Pierce John R. ; Shockley William // Bell Telephone Labor Inc
PDF File 2302546.pdf 872 kB Shaun Ewing Nov 17, 1942 00:00
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US-2302546-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2232801.pdf 871 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232801-A // Signaling system // Ressler Ralph E. // Bell Telephone Labor Inc
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