Name Size Creator Creation Date Labels Comment  
PDF File 1850608.pdf 1.66 MB Shaun Ewing Mar 22, 1932 00:00
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US-1850608-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc
PDF File 1851139.pdf 767 kB Shaun Ewing Mar 29, 1932 00:00
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US-1851139-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc
PDF File 1851173.pdf 527 kB Shaun Ewing Mar 29, 1932 00:00
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US-1851173-A // Method of and apparatus for gauging articles // Hall Arthur Gillespie // Bell Telephone Labor Inc
PDF File 1851185.pdf 877 kB Shaun Ewing Mar 29, 1932 00:00
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US-1851185-A // Telephone system // Johnson Lewis H. // Bell Telephone Labor Inc
PDF File 1852162.pdf 220 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852162-A // Refining of copper // Harris James E. ; White John H. // Bell Telephone Labor Inc
PDF File 1852584.pdf 1.21 MB Shaun Ewing Apr 05, 1932 00:00
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US-1852584-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 1852605.pdf 485 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852605-A // Inductance device // Carlton Roger C. ; Tinus William C. ; Vadersen Herbert // Bell Telephone Labor Inc
PDF File 1852647.pdf 678 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852647-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc
PDF File 1852743.pdf 202 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852743-A // Motion picture apparatus // Elmer Lloyd A. // Bell Telephone Labor Inc
PDF File 1852746.pdf 1.44 MB Shaun Ewing Apr 05, 1932 00:00
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US-1852746-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc
PDF File 1852747.pdf 1.40 MB Shaun Ewing Apr 05, 1932 00:00
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US-1852747-A // Trunk circuit for telephone exchange systems // Hague Alfred E. // Bell Telephone Labor Inc
PDF File 1852753.pdf 238 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852753-A // Telegraph signal distributing device // Knoop William A. // Bell Telephone Labor Inc
PDF File 1852756.pdf 477 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852756-A // Lubricating device // Pritchard William T. // Bell Telephone Labor Inc
PDF File 1852773.pdf 312 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852773-A // Electromagnetic signaling device // Gent Edgar W. // Bell Telephone Labor Inc
PDF File 1852774.pdf 674 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852774-A // Translating device // Gent Edgar W. ; Potts Louis M. // Bell Telephone Labor Inc
PDF File 1852777.pdf 543 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852777-A // Cooling system // Hoernel Paul C. ; Smith John W. // Bell Telephone Labor Inc
PDF File 1852795.pdf 847 kB Shaun Ewing Apr 05, 1932 00:00
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US-1852795-A // Wave transmission device // Wegel Raymond L. // Bell Telephone Labor Inc
PDF File 1853022.pdf 2.31 MB Shaun Ewing Apr 12, 1932 00:00
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US-1853022-A // Automatic dialing circuits // Allison Sewell W. ; Mccullagh Willis I. // Bell Telephone Labor Inc
PDF File 1853912.pdf 364 kB Shaun Ewing Apr 12, 1932 00:00
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US-1853912-A // Studio for acoustic purposes // Macnair Walter A. // Bell Telephone Labor Inc
PDF File 1853924.pdf 421 kB Shaun Ewing Apr 12, 1932 00:00
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US-1853924-A // Process for insulating magnetic bodies // Owens Conrad D. // Bell Telephone Labor Inc
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