Name Size Creator Creation Date Labels Comment  
PDF File 2091556.pdf 257 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091556-A // Coin chute for coin collectors // Mills Percy E. // Bell Telephone Labor Inc
PDF File 2091554.pdf 285 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091554-A // Composite refractory body // Mendenhall Hallam E. // Bell Telephone Labor Inc
PDF File 2091551.pdf 658 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091551-A // Signaling system // Low Frank K. // Bell Telephone Labor Inc
PDF File 2091549.pdf 551 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091549-A // Cabinet // Kelso Hugh D. // Bell Telephone Labor Inc
PDF File 2091541.pdf 1.38 MB Shaun Ewing Aug 31, 1937 00:00
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US-2091541-A // Telephone system // Williams Samuel B. // Bell Telephone Labor Inc
PDF File 2091533.pdf 779 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091533-A // Automatic measuring device // Swart Leland K. // Bell Telephone Labor Inc
PDF File 2091259.pdf 260 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091259-A // Resistance unit // Fisher Joseph R. // Bell Telephone Labor Inc
PDF File 2091250.pdf 526 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091250-A // Wave filter // Blackman Ralph B. // Bell Telephone Labor Inc
PDF File 2091249.pdf 373 kB Shaun Ewing Aug 31, 1937 00:00
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US-2091249-A // Method of and apparatus for working materials // Bieling Carl A. // Bell Telephone Labor Inc
PDF File 2090995.pdf 975 kB Shaun Ewing Aug 24, 1937 00:00
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US-2090995-A // Time delay relay // Browne Bennic O. // Bell Telephone Labor Inc
PDF File 2089921.pdf 10.78 MB Shaun Ewing Aug 10, 1937 00:00
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US-2089921-A // Dial telephone system // Carpenter Warren W. // Bell Telephone Labor Inc
PDF File 2089438.pdf 2.48 MB Shaun Ewing Aug 10, 1937 00:00
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US-2089438-A // Telephone system // Scudder Frederick J. // Bell Telephone Labor Inc
PDF File 2089409.pdf 1.34 MB Shaun Ewing Aug 10, 1937 00:00
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US-2089409-A // Phase correcting means and method // Ohl Russell S. // Bell Telephone Labor Inc
PDF File 2089386.pdf 335 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089386-A // Support for hand telephones // Lum George R. // Bell Telephone Labor Inc
PDF File 2089346.pdf 754 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089346-A // Transmission circuit // Jr. Stephen Doba, // Bell Telephone Labor Inc
PDF File 2089338.pdf 1.74 MB Shaun Ewing Aug 10, 1937 00:00
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US-2089338-A // Telephone system // Carpenter Warren W. ; Hague Alfred E. // Bell Telephone Labor Inc
PDF File 2089320.pdf 402 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089320-A // Electromagnetic switching device // Worth John B. // Bell Telephone Labor Inc
PDF File 2089264.pdf 299 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089264-A // Electrical terminal // Ingmanson John H. // Bell Telephone Labor Inc
PDF File 2089218.pdf 215 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089218-A // Glow discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc
PDF File 2089179.pdf 697 kB Shaun Ewing Aug 10, 1937 00:00
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US-2089179-A // Coaxial transmission system // Black Knox C. // Bell Telephone Labor Inc
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