Name Size Creator Creation Date Labels Comment  
PDF File 2165798.pdf 676 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165798-A // Relay // Kannenberg Walter F. // 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 2165510.pdf 523 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165510-A // Electrical measuring, recording, and control system // Rosene Victor E. // Bell Telephone Labor Inc
PDF File 2165509.pdf 312 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165509-A // Oscillation generator // Ring Douglas H. ; Wintringham William T. // Bell Telephone Labor Inc
PDF File 2165308.pdf 787 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165308-A // Cathode ray device // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2165307.pdf 857 kB Shaun Ewing Jul 11, 1939 00:00
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US-2165307-A // Means for translating magnetic variations into electric variations // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2165025.pdf 639 kB Shaun Ewing Jul 04, 1939 00:00
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US-2165025-A // Safety circuits for cathode ray tubes // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc
PDF File 2164752.pdf 467 kB Shaun Ewing Jul 04, 1939 00:00
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US-2164752-A // Transmission circuits // Nyquist Harry // Bell Telephone Labor Inc
PDF File 2164731.pdf 1.06 MB Shaun Ewing Jul 04, 1939 00:00
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US-2164731-A // Telephone system // Bascom Henry M. // Bell Telephone Labor Inc
PDF File 2164541.pdf 637 kB Shaun Ewing Jul 04, 1939 00:00
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US-2164541-A // Electromechanical wave filter // Och Henry G. // Bell Telephone Labor Inc
PDF File 2164383.pdf 1.43 MB Shaun Ewing Jul 04, 1939 00:00
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US-2164383-A // Magnetic device // Burton Everett T. // Bell Telephone Labor Inc
PDF File 2164344.pdf 829 kB Shaun Ewing Jul 04, 1939 00:00
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US-2164344-A // Signal transmission system // Norwine Andrew C. // Bell Telephone Labor Inc
PDF File 2164335.pdf 711 kB Shaun Ewing Jul 04, 1939 00:00
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US-2164335-A // Telephone system // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 2164325.pdf 986 kB Shaun Ewing Jul 04, 1939 00:00
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US-2164325-A // Telephone system // Hartley Ralph V. L. // Bell Telephone Labor Inc
PDF File 2164165.pdf 1.25 MB Shaun Ewing Jun 27, 1939 00:00
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US-2164165-A // Electrical condenser // Rodgers Karl F. // Bell Telephone Labor Inc
PDF File 2164034.pdf 948 kB Shaun Ewing Jun 27, 1939 00:00
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US-2164034-A // Selector switch // Hickman Clarence N. // Bell Telephone Labor Inc
PDF File 2164033.pdf 886 kB Shaun Ewing Jun 27, 1939 00:00
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US-2164033-A // Telephone system // Halligan Clair W. // Bell Telephone Labor Inc
PDF File 2163756.pdf 871 kB Shaun Ewing Jun 27, 1939 00:00
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US-2163756-A // High frequency oscillator // Llewellyn Frederick B. // Bell Telephone Labor Inc
PDF File 2163750.pdf 957 kB Shaun Ewing Jun 27, 1939 00:00
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US-2163750-A // High frequency transmission system // D'Heedene Albert R. // Bell Telephone Labor Inc
PDF File 2163668.pdf 694 kB Shaun Ewing Jun 27, 1939 00:00
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US-2163668-A // Teletypewriter station // Corwin Thomas L. ; Hysko John L. // Bell Telephone Labor Inc
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