Name Size Creator Creation Date Labels Comment  
PDF File 1930279.pdf 840 kB Shaun Ewing Oct 10, 1933 00:00
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US-1930279-A // Motor control system // Morton Edmund R. // Bell Telephone Labor Inc
PDF File 1930898.pdf 365 kB Shaun Ewing Oct 17, 1933 00:00
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US-1930898-A // Program transmission // Johnson Kenneth S. // Bell Telephone Labor Inc
PDF File 1930906.pdf 632 kB Shaun Ewing Oct 17, 1933 00:00
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US-1930906-A // Sound translating device // Nordenswan Robert // Bell Telephone Labor Inc
PDF File 1930913.pdf 654 kB Shaun Ewing Oct 17, 1933 00:00
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US-1930913-A // Film editing machine // Terry Roy V. // Bell Telephone Labor Inc
PDF File 1930915.pdf 559 kB Shaun Ewing Oct 17, 1933 00:00
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US-1930915-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc
PDF File 1931028.pdf 781 kB Shaun Ewing Oct 17, 1933 00:00
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US-1931028-A // Piezo-electric relay // Marrison Warren A. // Bell Telephone Labor Inc
PDF File 1931031.pdf 691 kB Shaun Ewing Oct 17, 1933 00:00
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US-1931031-A // Signal transmission system // Nebel Charles N. // Bell Telephone Labor Inc
PDF File 1931036.pdf 657 kB Shaun Ewing Oct 17, 1933 00:00
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US-1931036-A // Radio antenna supporting and accessory structure // Ryan Francis M. // Bell Telephone Labor Inc
PDF File 1931063.pdf 1.02 MB Shaun Ewing Oct 17, 1933 00:00
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US-1931063-A // Signal transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc
PDF File 1931866.pdf 796 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931866-A // Gain control circuits // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 1931867.pdf 1.16 MB Shaun Ewing Oct 24, 1933 00:00
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US-1931867-A // Battery control system // Holden William H. T. ; Jutson Robert P. ; Larew Joel L. // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 1931873.pdf 309 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931873-A // Frequency control system // Marrison Warren A. // Bell Telephone Labor Inc
PDF File 1931874.pdf 366 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931874-A // Electron discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc
PDF File 1931877.pdf 770 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931877-A // Testing system for space discharge devices // Samuel Arthur L. // Bell Telephone Labor Inc
PDF File 1931886.pdf 295 kB Shaun Ewing Oct 24, 1933 00:00
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US-1931886-A // Acoustic apparatus // Schlenker Vesper A. // Bell Telephone Labor Inc
PDF File 1932253.pdf 809 kB Shaun Ewing Oct 24, 1933 00:00
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US-1932253-A // Television system // Ives Herbert E. // Bell Telephone Labor Inc
PDF File 1932435.pdf 349 kB Shaun Ewing Oct 31, 1933 00:00
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US-1932435-A // Transmission network // Aiken Charles B. ; Corbin Joseph E. // Bell Telephone Labor Inc
PDF File 1932465.pdf 962 kB Shaun Ewing Oct 31, 1933 00:00
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US-1932465-A // Radio receiving system // Jensen Axel G. // Bell Telephone Labor Inc
PDF File 1932816.pdf 407 kB Shaun Ewing Oct 31, 1933 00:00
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US-1932816-A // Remote control device // Gargan John O. ; Browne Bennie O. // Bell Telephone Labor Inc
PDF File 1933248.pdf 504 kB Shaun Ewing Oct 31, 1933 00:00
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US-1933248-A // Radio direction finding // Evans Porter H. ; Greig John W. // Bell Telephone Labor Inc
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