Name Size Creator Creation Date Labels Comment  
PDF File 1877872.pdf 214 kB Shaun Ewing Sept 20, 1932 00:00
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US-1877872-A // Production of short electric waves // Hollmann Hans Erich // American Telephone & Telegraph
PDF File 1878711.pdf 775 kB Shaun Ewing Sept 20, 1932 00:00
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US-1878711-A // Electrooptical transmission system // Reynolds Frederick W. // American Telephone & Telegraph
PDF File 1878724.pdf 291 kB Shaun Ewing Sept 20, 1932 00:00
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US-1878724-A // Generating and modulating apparatus // Stevens Walter A. // American Telephone & Telegraph
PDF File 1879741.pdf 852 kB Shaun Ewing Sept 27, 1932 00:00
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US-1879741-A // Telephone system // Haines William T. // American Telephone & Telegraph
PDF File 1879746.pdf 607 kB Shaun Ewing Sept 27, 1932 00:00
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US-1879746-A // Submarine concentric conductor system // Holden William H. T. // American Telephone & Telegraph
PDF File 1879773.pdf 486 kB Shaun Ewing Sept 27, 1932 00:00
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US-1879773-A // Electrical protective system // Swart Leland K. // American Telephone & Telegraph
PDF File 1880285.pdf 453 kB Shaun Ewing Oct 04, 1932 00:00
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US-1880285-A // Wireless system // Scheppmann Wilhelm // American Telephone & Telegraph
PDF File 1880311.pdf 358 kB Shaun Ewing Oct 04, 1932 00:00
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US-1880311-A // Printing telegraph system // Boose Harry B. // American Telephone & Telegraph
PDF File 1881607.pdf 1.14 MB Shaun Ewing Oct 11, 1932 00:00
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US-1881607-A // Printing telegraph system // Hunt Arthur E. ; Lang Wilmarth Y. // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 1882125.pdf 436 kB Shaun Ewing Oct 11, 1932 00:00
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US-1882125-A // Testing system // Edwards Paul G. // American Telephone & Telegraph
PDF File 1882150.pdf 605 kB Shaun Ewing Oct 11, 1932 00:00
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US-1882150-A // Manhole guard // Kent Robert J. // American Telephone & Telegraph
PDF File 1885168.pdf 1.08 MB Shaun Ewing Nov 01, 1932 00:00
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US-1885168-A // Concentric conducting system // Affel Herman A. // American Telephone & Telegraph
PDF File 1885195.pdf 480 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885195-A // Concentric conductor transmission system // Green Estill I. // American Telephone & Telegraph
PDF File 1885214.pdf 846 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885214-A // Signaling system // Almquist Milton L. ; Thompson Albert C. // American Telephone & Telegraph
PDF File 1885299.pdf 563 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885299-A // Monitoring system // Schramm Fred W. // American Telephone & Telegraph
PDF File 1885798.pdf 317 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885798-A // Transmission regulation // Brand Smart // American Telephone & Telegraph
PDF File 1885826.pdf 491 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885826-A // System of photography employing frequency modulation // Holden William H. T. ; Bonell Ralph K. // American Telephone & Telegraph
PDF File 1886808.pdf 531 kB Shaun Ewing Nov 08, 1932 00:00
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US-1886808-A // Bias control in telegraph communication // Herman Joseph // American Telephone & Telegraph
PDF File 1887172.pdf 1.46 MB Shaun Ewing Nov 08, 1932 00:00
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US-1887172-A // Combined earth boring machine and derrick apparatus // Smith Temple Clifford ; Spowart John Beveridge // American Telephone & Telegraph
PDF File 1887576.pdf 460 kB Shaun Ewing Nov 15, 1932 00:00
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US-1887576-A // Telephone pay station apparatus // Bollinger Howard M. // American Telephone & Telegraph
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