Name Size Creator Creation Date Labels Comment  
PDF File 1940097.pdf 326 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940097-A // Radio receiving system // Ohl Russell S. // Bell Telephone Labor Inc
PDF File 1940095.pdf 495 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940095-A // Coin collector // Melick John M. // Bell Telephone Labor Inc
PDF File 1940093.pdf 421 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940093-A // Electric musical instrument // Lindridge Charles D. // Bell Telephone Labor Inc
PDF File 1940089.pdf 223 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940089-A // Phonograph record turntable // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 1940088.pdf 355 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940088-A // Sound picture record container // Harrison Henry C. // Bell Telephone Labor Inc
PDF File 1939725.pdf 779 kB Shaun Ewing Dec 19, 1933 00:00
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US-1939725-A // Transmission circuits // Pruden Harold M. ; Wadsworth Paul W. // Bell Telephone Labor Inc
PDF File 1939680.pdf 535 kB Shaun Ewing Dec 19, 1933 00:00
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US-1939680-A // Voice operated circuit // Fisher Harold J. // Bell Telephone Labor Inc
PDF File 1939086.pdf 177 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939086-A // Supporting device // Jr. Ira C. Shafer, // Bell Telephone Labor Inc
PDF File 1939079.pdf 633 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939079-A // Sound picture reproducing equipment // Pfannenstiehl Harry // Bell Telephone Labor Inc
PDF File 1939073.pdf 602 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939073-A // Temperature control apparatus // Malles Ralph E. // Bell Telephone Labor Inc
PDF File 1939072.pdf 355 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939072-A // Phonograph recording machine // Mallina Rudolph F. // Bell Telephone Labor Inc
PDF File 1939060.pdf 366 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939060-A // Modulating system // Kingsbury Edwin F. // Bell Telephone Labor Inc
PDF File 1939053.pdf 383 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939053-A // Short wave transmission // Hunt Loyd E. // Bell Telephone Labor Inc
PDF File 1938726.pdf 432 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938726-A // Electromagnetic device // Slauson William C. // Bell Telephone Labor Inc
PDF File 1938709.pdf 351 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938709-A // Telephone system // Massonneau Robert F. // Bell Telephone Laberatories In
PDF File 1938706.pdf 586 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938706-A // Phonograph machine // Mallina Rudolph F. // Bell Telephone Labor Inc
PDF File 1938698.pdf 432 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938698-A // Coin controlled apparatus // Hoyt Frederick A. // Bell Telephone Labor Inc
PDF File 1938694.pdf 571 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938694-A // Sound film recording apparatus // Goehner William R. ; Herriott William // Bell Telephone Labor Inc
PDF File 1938684.pdf 390 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938684-A // Testing apparatus // Bond Donald S. ; Fuller Calvin S. ; Erickson Charles L. // Bell Telephone Labor Inc
PDF File 1937143.pdf 514 kB Shaun Ewing Nov 28, 1933 00:00
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US-1937143-A // Excess voltage protection circuit // Curtis Austen M. // Bell Telephone Labor Inc
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