Name Size Creator Creation Date Labels Comment  
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
PDF File 1811860.pdf 697 kB Shaun Ewing Jun 30, 1931 00:00
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US-1811860-A // Regulator system // Morton Edmund R. // Bell Telephone Labor Inc
PDF File 1827196.pdf 697 kB Shaun Ewing Oct 13, 1931 00:00
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US-1827196-A // Piezo electric oscillator // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 2157703.pdf 696 kB Shaun Ewing May 09, 1939 00:00
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US-2157703-A // Piezoelectric apparatus // Hovgaard Ole M. ; Koerner Lawrence F. // Bell Telephone Labor Inc
PDF File 2106337.pdf 696 kB Shaun Ewing Jan 25, 1938 00:00
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US-2106337-A // Transmission system // Black Harold S. // Bell Telephone Labor Inc
PDF File 1863384.pdf 696 kB Shaun Ewing Jun 14, 1932 00:00
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US-1863384-A // Lens tube adjusting appliance // Terry Roy V. // Bell Telephone Labor Inc
PDF File 1910980.pdf 695 kB Shaun Ewing May 23, 1933 00:00
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US-1910980-A // Transmitter filling machine // Bennett Arthur F. // Bell Telephone Labor Inc
PDF File 1967249.pdf 695 kB Shaun Ewing Jul 24, 1934 00:00
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US-1967249-A // High frequency amplifier // Mason Warren P. // Bell Telephone Labor Inc
PDF File 1841085.pdf 695 kB Shaun Ewing Jan 12, 1932 00:00
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US-1841085-A // Unidirectional antenna system // Bruce Edmond // Bell Telephone Labor Inc
PDF File 2086602.pdf 695 kB Shaun Ewing Jul 13, 1937 00:00
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US-2086602-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc
PDF File 2115133.pdf 695 kB Shaun Ewing Apr 26, 1938 00:00
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US-2115133-A // Telephone system // Allison Sewell W. // Bell Telephone Labor Inc
PDF File 2094052.pdf 695 kB Shaun Ewing Sept 28, 1937 00:00
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US-2094052-A // Facsimile telegraph system // Aamodt Thoralf // Bell Telephone Labor Inc
PDF File 1976503.pdf 694 kB Shaun Ewing Oct 09, 1934 00:00
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US-1976503-A // Impulse testing device // Kuchas Francis // Bell Telephone Labor Inc
PDF File 2037161.pdf 694 kB Shaun Ewing Apr 14, 1936 00:00
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US-2037161-A // Apparatus for the optical calibration of timepieces // Fetter Charles H. ; Morton Edmund R. ; Stoller Hugh M. // Electrical Res Prod Inc ; Bell Telephone Labor Inc
PDF File 2185851.pdf 694 kB Shaun Ewing Jan 02, 1940 00:00
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US-2185851-A // Signaling system // Kinkead Fullerton S. // Bell Telephone Labor Inc
PDF File 2163668.pdf 694 kB Shaun Ewing Jun 27, 1939 00:00
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US-2163668-A // Teletypewriter station // Corwin Thomas L. ; Hysko John L. // Bell Telephone Labor Inc
PDF File 1840090.pdf 694 kB Shaun Ewing Jan 05, 1932 00:00
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US-1840090-A // Impulse circuit // Goodrum Charles L. // Bell Telephone Labor Inc
PDF File 2209064.pdf 693 kB Shaun Ewing Jul 23, 1940 00:00
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US-2209064-A // Measurement of phase shift // Nyquist Harry // Bell Telephone Labor Inc
PDF File 2129820.pdf 693 kB Shaun Ewing Sept 13, 1938 00:00
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US-2129820-A // Modulation system for ultra-short waves // Chaffee Joseph G. // Bell Telephone Labor Inc
PDF File 2046723.pdf 693 kB Shaun Ewing Jul 07, 1936 00:00
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US-2046723-A // Film driving apparatus // Brownscombe Philip J. // Bell Telephone Labor Inc
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