Name Size Creator Creation Date Labels Comment  
PDF File 1933251.pdf 532 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933251-A // Photographic film drive mechanism // Gauthier Marcel C. // Bell Telephone Labor Inc
PDF File 1933252.pdf 407 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933252-A // Translating device // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 1933261.pdf 528 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933261-A // Shielding // Harris Henry J. // Bell Telephone Labor Inc
PDF File 1933264.pdf 470 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933264-A // Coin receptacle // Hoyt Frederick A. // Bell Telephone Labor Inc
PDF File 1933272.pdf 393 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933272-A // Electric connecter // Leuvelink Bernard ; Betts Walter L. // Bell Telephone Labor Inc
PDF File 1933274.pdf 298 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933274-A // Testing device // Ludwig Arthur // Bell Telephone Labor Inc
PDF File 1934364.pdf 438 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934364-A // Impulse receiving system // Locke George A. // Bell Telephone Labor Inc
PDF File 1934369.pdf 523 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934369-A // Electric discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc
PDF File 1934378.pdf 431 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934378-A // Electric discharge device // Ronci Victor L. ; Depew Charles // Bell Telephone Labor Inc
PDF File 1934390.pdf 343 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934390-A // Frequency changer // Uphoff Leslie S. // Bell Telephone Labor Inc
PDF File 1934400.pdf 348 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934400-A // Frequency control system // Bollman John H. // Bell Telephone Labor Inc
PDF File 1934412.pdf 621 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934412-A // Radio receiving circuit // Englund Carl R. // Bell Telephone Labor Inc
PDF File 1934416.pdf 745 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934416-A // Vibration translating device // Flanders Paul B. ; Harrison Henry C. // Bell Telephone Labor Inc
PDF File 1934423.pdf 901 kB Shaun Ewing Nov 07, 1933 00:00
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US-1934423-A // System for communicating with moving vehicles // Green Charles W. // Bell Telephone Labor Inc
PDF File 1935300.pdf 683 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935300-A // Sound reproducing system // Smythe Edwin H. // Bell Telephone Labor Inc
PDF File 1935301.pdf 724 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935301-A // Sound reproducing system // Smythe Edwin H. // Bell Telephone Labor Inc
PDF File 1935316.pdf 582 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935316-A // Detector // Galt Rogers H. // Bell Telephone Labor Inc
PDF File 1935321.pdf 523 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935321-A // Gutta-percha insulation material // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc
PDF File 1935322.pdf 211 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935322-A // Lead covered cable // Kemp Archie R. // Bell Telephone Labor Inc
PDF File 1935323.pdf 241 kB Shaun Ewing Nov 14, 1933 00:00
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US-1935323-A // Underground cable // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc
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