Name Size Creator Creation Date Labels Comment  
PDF File 2309044.pdf 654 kB Shaun Ewing Jan 19, 1943 00:00
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US-2309044-A // Testing system // Burton Everett T. // Bell Telephone Labor Inc
PDF File 2309081.pdf 270 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309081-A // Electrically conductive device // Priessman Neil Y. ; Whytock John // Bell Telephone Labor Inc
PDF File 2309220.pdf 452 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309220-A // Electron discharge device // Skellett Albert M. // Bell Telephone Labor Inc
PDF File 2309467.pdf 1.68 MB Shaun Ewing Jan 26, 1943 00:00
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US-2309467-A // Rochelle salt piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc
PDF File 2309490.pdf 618 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309490-A // Electric measuring apparatus // Young Clarence H. // Bell Telephone Labor Inc
PDF File 2309525.pdf 603 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309525-A // Electric signaling // Mohr Milton E. // Bell Telephone Labor Inc
PDF File 2309537.pdf 257 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309537-A // Key action mechanism // Rienstra Albert R. // Bell Telephone Labor Inc
PDF File 2309586.pdf 412 kB Shaun Ewing Jan 26, 1943 00:00
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US-2309586-A // Static frequency changing system // Haines Atwell B. // 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
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 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 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 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 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 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 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 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 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 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 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
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