Name Size Creator Creation Date Labels Comment  
PDF File 1847702.pdf 1.13 MB Shaun Ewing Mar 01, 1932 00:00
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US-1847702-A // Sound translating device // Thuras Albert L. // Bell Telephone Labor Inc
PDF File 1848134.pdf 635 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848134-A // Electrical testing system // Lambert Kenneth B. // Bell Telephone Labor Inc
PDF File 1848143.pdf 619 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848143-A // Motion picture apparatus // Pfannenstiehl Harry // Bell Telephone Labor Inc
PDF File 1848169.pdf 180 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848169-A // Adjustable inductance // Greenidge Ralph M. C. // Bell Telephone Labor Inc
PDF File 1848174.pdf 8.31 MB Shaun Ewing Mar 08, 1932 00:00
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US-1848174-A // Trouble recording system // Irvine Frank S. ; Roberts Thomas H. // Bell Telephone Labor Inc
PDF File 1848180.pdf 1.47 MB Shaun Ewing Mar 08, 1932 00:00
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US-1848180-A // Synchronizing system // Knoop William A. // Bell Telephone Labor Inc
PDF File 1848181.pdf 1.15 MB Shaun Ewing Mar 08, 1932 00:00
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US-1848181-A // Synchronous signaling system // Knoop William A. // Bell Telephone Labor Inc
PDF File 1848187.pdf 373 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848187-A // Vacuum tube amplifier // Mcnally James O. // Bell Telephone Labor Inc
PDF File 1848212.pdf 528 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848212-A // Apparatus for producing artificial breathing // Waterman John S. // Bell Telephone Labor Inc
PDF File 1848364.pdf 459 kB Shaun Ewing Mar 08, 1932 00:00
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US-1848364-A // Treating magnetic materials // Legg Victor E. // Bell Telephone Labor Inc
PDF File 1849087.pdf 1.61 MB Shaun Ewing Mar 15, 1932 00:00
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US-1849087-A // Telephone system // Hovland Henry // Bell Telephone Labor Inc
PDF File 1849088.pdf 1.54 MB Shaun Ewing Mar 15, 1932 00:00
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US-1849088-A // Telephone system // Hovland Henry // Bell Telephone Labor Inc
PDF File 1849643.pdf 799 kB Shaun Ewing Mar 15, 1932 00:00
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US-1849643-A // Electric contact device // Seasongood Charles C. ; Mcwilliams Charles W. // Bell Telephone Labor Inc
PDF File 1849645.pdf 592 kB Shaun Ewing Mar 15, 1932 00:00
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US-1849645-A // Motor structure // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 1849646.pdf 1.16 MB Shaun Ewing Mar 15, 1932 00:00
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US-1849646-A // Motor control system // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 1849656.pdf 887 kB Shaun Ewing Mar 15, 1932 00:00
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US-1849656-A // Transmission network // Bennett William R. // Bell Telephone Labor Inc
PDF File 1849662.pdf 1.99 MB Shaun Ewing Mar 15, 1932 00:00
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US-1849662-A // Telephone exchange system // Dunham Bert G. // Bell Telephone Labor Inc
PDF File 1850579.pdf 407 kB Shaun Ewing Mar 22, 1932 00:00
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US-1850579-A // Adjustable inductance coil // Casper William L. // Bell Telephone Labor Inc
PDF File 1850593.pdf 1.39 MB Shaun Ewing Mar 22, 1932 00:00
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US-1850593-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc
PDF File 1850603.pdf 3.01 MB Shaun Ewing Mar 22, 1932 00:00
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US-1850603-A // Telephone system // Quass Ralph L. // Bell Telephone Labor Inc
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