Name Size Creator Creation Date Labels Comment  
PDF File 2312408.pdf 263 kB Shaun Ewing Mar 02, 1943 00:00
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US-2312408-A // Contact spring assembly // Hansen Harry // Bell Telephone Labor Inc
PDF File 2312206.pdf 921 kB Shaun Ewing Feb 23, 1943 00:00
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US-2312206-A // Method of and apparatus for reducing halo from fluorescent screens // Calbick Chester J. // Bell Telephone Labor Inc
PDF File 2311807.pdf 597 kB Shaun Ewing Feb 23, 1943 00:00
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US-2311807-A // Electron discharge device circuit // Anderson Frithiof B. // Bell Telephone Labor Inc
PDF File 2311801.pdf 322 kB Shaun Ewing Feb 23, 1943 00:00
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US-2311801-A // Thermal time delay relay // Winans Robert C. // Bell Telephone Labor Inc
PDF File 2311800.pdf 1.91 MB Shaun Ewing Feb 23, 1943 00:00
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US-2311800-A // Communication system // Williams Samuel B. // Bell Telephone Labor Inc
PDF File 2311796.pdf 660 kB Shaun Ewing Feb 23, 1943 00:00
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US-2311796-A // Modulation of carrier frequencies // Wrathall Leishman R. // Bell Telephone Labor Inc
PDF File 2311751.pdf 571 kB Shaun Ewing Feb 23, 1943 00:00
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US-2311751-A // Telephone coin collector // Hoyt Frederick A. // Bell Telephone Labor Inc
PDF File 2310749.pdf 1.11 MB Shaun Ewing Feb 09, 1943 00:00
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US-2310749-A // Singaling system // Ressler Ralph E. // Bell Telephone Labor Inc
PDF File 2310695.pdf 448 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310695-A // Oscillating system // Higgins William H. C. // Bell Telephone Labor Inc
PDF File 2310637.pdf 583 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310637-A // Coin chute // Hoyt Frederick A. // Bell Telephone Labor Inc
PDF File 2310634.pdf 951 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310634-A // Communication system // Holden William H. T. // Bell Telephone Labor Inc
PDF File 2310452.pdf 1.66 MB Shaun Ewing Feb 09, 1943 00:00
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US-2310452-A // Switching system // Meacham Larned A. ; Parker Carlyle V. // Bell Telephone Labor Inc
PDF File 2310428.pdf 636 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310428-A // Automatic teletypewriter operation // Hall John A. ; Schmied James W. // Bell Telephone Labor Inc
PDF File 2310417.pdf 459 kB Shaun Ewing Feb 09, 1943 00:00
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US-2310417-A // Pneumatic ticket sending and receiving valve // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2310279.pdf 2.20 MB Shaun Ewing Feb 09, 1943 00:00
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US-2310279-A // Telegraph system // Dahlbom Carl A. ; Hearn Richard B. // Bell Telephone Labor Inc
PDF File 2310034.pdf 1.01 MB Shaun Ewing Feb 02, 1943 00:00
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US-2310034-A // Signaling system // Miller Albert H. // Bell Telephone Labor Inc
PDF File 2309953.pdf 899 kB Shaun Ewing Feb 02, 1943 00:00
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US-2309953-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 2309945.pdf 482 kB Shaun Ewing Feb 02, 1943 00:00
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US-2309945-A // Polarized relay // Garvin John S. // Bell Telephone Labor Inc
PDF File 2309705.pdf 388 kB Shaun Ewing Feb 02, 1943 00:00
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US-2309705-A // Carrier wave signaling // Miller Ralph L. // Bell Telephone Labor Inc
PDF File 2309703.pdf 291 kB Shaun Ewing Feb 02, 1943 00:00
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US-2309703-A // Alternating current generator // Lovell Clarence A. ; Mallina Rudolph F. // Bell Telephone Labor Inc
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