Name Size Creator Creation Date Labels Comment  
PDF File 2714632.pdf 3.66 MB Shaun Ewing Aug 02, 1955 00:00
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US-2714632-A // Ringing generator and interrupter using electron tubes // Hall Nathan I. ; Korn Franklin A. ; Powell Harold E. // Bell Telephone Labor Inc
PDF File 2714626.pdf 4.50 MB Shaun Ewing Aug 02, 1955 00:00
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US-2714626-A // Private line intercommunicating teletypewriter system // Locke George A. ; Melhuish Lawrence E. ; Jr. Bernard Ostendorf, // Bell Telephone Labor Inc
PDF File 2714182.pdf 526 kB Shaun Ewing Jul 26, 1955 00:00
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US-2714182-A // Hall effect devices // Jr. William H. Hewitt, // Bell Telephone Labor Inc
PDF File 2714000.pdf 517 kB Shaun Ewing Jul 26, 1955 00:00
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US-2714000-A // Spring return mechanism // O'Connor Thomas J. ; Williams Clayton H. // Bell Telephone Labor Inc
PDF File 2713665.pdf 570 kB Shaun Ewing Jul 19, 1955 00:00
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US-2713665-A // Transistor modulator circuits // Raisbeck Gordon ; Jr. Robert Lee Wallace, // Bell Telephone Labor Inc
PDF File 2713650.pdf 1.12 MB Shaun Ewing Jul 19, 1955 00:00
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US-2713650-A // Electron discharge devices // Sears Raymond W. // Bell Telephone Labor Inc
PDF File 2713617.pdf 2.12 MB Shaun Ewing Jul 19, 1955 00:00
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US-2713617-A // Repetitive telephone calling system employing power supplied over the subscriber's loop // Dunlap Kermit S. // Bell Telephone Labor Inc
PDF File 2713613.pdf 7.22 MB Shaun Ewing Jul 19, 1955 00:00
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US-2713613-A // Arrangement for supplying alternating current power for actuating telephone subscriber's station equipment over the subscriber's loop circuit // Malthaner William A. ; Vaughan Henry E. // Bell Telephone Labor Inc
PDF File 2713153.pdf 391 kB Shaun Ewing Jul 12, 1955 00:00
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US-2713153-A // Orifice coupling to resonant cavities // Kannenberg Walter F. // Bell Telephone Labor Inc
PDF File 2712605.pdf 814 kB Shaun Ewing Jul 05, 1955 00:00
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US-2712605-A // Oscillation generator // Field Lester M. // Bell Telephone Labor Inc
PDF File 2712536.pdf 683 kB Shaun Ewing Jul 05, 1955 00:00
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US-2712536-A // Production of polymer spheres // Winslow Field H. // Bell Telephone Labor Inc
PDF File 2712067.pdf 498 kB Shaun Ewing Jun 28, 1955 00:00
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US-2712067-A // Metallic lens directive antenna systems // Kock Winston E. // Bell Telephone Labor Inc
PDF File 2711515.pdf 731 kB Shaun Ewing Jun 21, 1955 00:00
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US-2711515-A // Delay line // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2711511.pdf 699 kB Shaun Ewing Jun 21, 1955 00:00
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US-2711511-A // Electrical hygrometer // Pietenpol William J. // Bell Telephone Labor Inc
PDF File 2710945.pdf 673 kB Shaun Ewing Jun 14, 1955 00:00
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US-2710945-A // Mode suppression in resonant cavities // Edson William A. // Bell Telephone Labor Inc
PDF File 2710944.pdf 565 kB Shaun Ewing Jun 14, 1955 00:00
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US-2710944-A // Interstage coupling network // Bangert John T. // Bell Telephone Labor Inc
PDF File 2710922.pdf 678 kB Shaun Ewing Jun 14, 1955 00:00
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US-2710922-A // High frequency oscillator // Hines Marion E. // Bell Telephone Labor Inc
PDF File 2710921.pdf 1.01 MB Shaun Ewing Jun 14, 1955 00:00
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US-2710921-A // Frequency divider apparatus // Melsheimer Robert S. // Bell Telephone Labor Inc
PDF File 2710892.pdf 2.09 MB Shaun Ewing Jun 14, 1955 00:00
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US-2710892-A // Speech transmission system // Dahlbom Carl A. ; Weaver Allan // Bell Telephone Labor Inc
PDF File 2710891.pdf 2.40 MB Shaun Ewing Jun 14, 1955 00:00
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US-2710891-A // Telegraph service board circuits // Fitch Karl E. ; Neiswinter James T. ; Purvis Matthew R. ; Vanderlippe Richard A. // American Telephone & Telegraph ; Bell Telephone Labor Inc
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