Name Size Creator Creation Date Labels Comment  
PDF File 2518564.pdf 1.44 MB Shaun Ewing Aug 15, 1950 00:00
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US-2518564-A // Antenna auxiliary control circuit for directional beam scanning systems // Nebel Charles N. // Bell Telephone Labor Inc
PDF File 2519233.pdf 2.66 MB Shaun Ewing Aug 15, 1950 00:00
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US-2519233-A // Aircraft trainer // Davis Richard C. ; Bohman Vincent F. ; Germanton Charles E. // Bell Telephone Labor Inc
PDF File 2519247.pdf 629 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519247-A // Timing circuit // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2519262.pdf 854 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519262-A // Differential analyzer // Lovell Clarence A. // Bell Telephone Labor Inc
PDF File 2519277.pdf 572 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519277-A // Magnetostrictive device and alloy and method of producing them // Nesbitt Ethan A. ; Williams Howell J. // Bell Telephone Labor Inc
PDF File 2519278.pdf 859 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519278-A // Pulse-actuated circuit // Olivey Bernard M. // Bell Telephone Labor Inc
PDF File 2519280.pdf 332 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519280-A // Method and composition for making ceramic articles // Potter John F. ; Rigterink Merlc D. // Bell Telephone Labor Inc
PDF File 2519287.pdf 555 kB Shaun Ewing Aug 15, 1950 00:00
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US-2519287-A // Multiunit calling group control circuit for preventing overload of current at switchboards // Robb Theodore D. ; Shiel John B. // Bell Telephone Labor Inc
PDF File 2519425.pdf 934 kB Shaun Ewing Aug 22, 1950 00:00
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US-2519425-A // Alternating current control device // Barlow Dick S. // Bell Telephone Labor Inc
PDF File 2519426.pdf 1.03 MB Shaun Ewing Aug 22, 1950 00:00
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US-2519426-A // Alternating current control device // Grant Dwight W. // Bell Telephone Labor Inc
PDF File 2519463.pdf 769 kB Shaun Ewing Aug 22, 1950 00:00
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US-2519463-A // Mercury type relay // Harrison Henry C. // Bell Telephone Lab Incorproate
PDF File 2519495.pdf 469 kB Shaun Ewing Aug 22, 1950 00:00
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US-2519495-A // Magnetostrictive core and method of making it // Nesbitt Ethan A. ; Williams Howell J. // Bell Telephone Labor Inc
PDF File 2519667.pdf 733 kB Shaun Ewing Aug 22, 1950 00:00
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US-2519667-A // Motor control circuit // Jr. Walter Koenig, // Bell Telephone Labor Inc
PDF File 2519670.pdf 1.84 MB Shaun Ewing Aug 22, 1950 00:00
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US-2519670-A // Power plant charge control circuit // Langabeer Harvey T. // Bell Telephone Labor Inc
PDF File 2519688.pdf 1.27 MB Shaun Ewing Aug 22, 1950 00:00
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US-2519688-A // Signal code translator // Mitchell Doren // Bell Telephone Labor Inc
PDF File 2519698.pdf 4.72 MB Shaun Ewing Aug 22, 1950 00:00
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US-2519698-A // Ground trainer for aircraft personnel // Pearsall Frank M. // Bell Telephone Labor Inc
PDF File 2520007.pdf 908 kB Shaun Ewing Aug 22, 1950 00:00
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US-2520007-A // Testing circuit for carrier communication system with automatic reset timer // Hochgraf Lester // Bell Telephone Labor Inc
PDF File 2520008.pdf 951 kB Shaun Ewing Aug 22, 1950 00:00
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US-2520008-A // Radio marker system // King Archie P. // Bell Telephone Labor Inc
PDF File 2520016.pdf 1.49 MB Shaun Ewing Aug 22, 1950 00:00
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US-2520016-A // Mounting of electrodes in electron discharge devices and method of fabrication // Ronci Victor L. ; West John W. // Bell Telephone Labor Inc
PDF File 2520534.pdf 1.95 MB Shaun Ewing Aug 29, 1950 00:00
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US-2520534-A // Multiplex pulse repeater // Edson James O. // Bell Telephone Labor Inc
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