Name Size Creator Creation Date Labels Comment  
PDF File 1888227.pdf 1.35 MB Shaun Ewing Nov 22, 1932 00:00
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US-1888227-A // Volume control system // Jr. Arthur W. Horton, // Bell Telephone Labor Inc
PDF File 1885728.pdf 356 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885728-A // Harmonic generating and selecting system // Keith Clyde R. // Bell Telephone Labor Inc
PDF File 1885151.pdf 936 kB Shaun Ewing Nov 01, 1932 00:00
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US-1885151-A // Directive antenna system // Sterba Ernest J. // Bell Telephone Labor Inc
PDF File 1884845.pdf 607 kB Shaun Ewing Oct 25, 1932 00:00
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US-1884845-A // Magnetic amplifier // Peterson Eugene // Bell Telephone Labor Inc
PDF File 1884844.pdf 660 kB Shaun Ewing Oct 25, 1932 00:00
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US-1884844-A // Magnetic wave-amplifying repeater // Peterson Eugene // Bell Telephone Labor Inc
PDF File 1884697.pdf 958 kB Shaun Ewing Oct 25, 1932 00:00
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US-1884697-A // Long distance telephone system // Jr. Arthur W. Horton, // Bell Telephone Labor Inc
PDF File 1884675.pdf 2.04 MB Shaun Ewing Oct 25, 1932 00:00
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US-1884675-A // Electric wave transmission system // Heising Raymond A. // Bell Telephone Labor Inc
PDF File 1884582.pdf 287 kB Shaun Ewing Oct 25, 1932 00:00
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US-1884582-A // Vacuum tube socket // Crawford Allen I. // Bell Telephone Labor Inc
PDF File 1884567.pdf 1.11 MB Shaun Ewing Oct 25, 1932 00:00
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US-1884567-A // Telegraph exchange system // Catogge Joseph J. // Bell Telephone Labor Inc
PDF File 1883291.pdf 902 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883291-A // Projection of stereoscopic pictures // Ives Herbert E. // Bell Telephone Labor Inc
PDF File 1883163.pdf 288 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883163-A // Remote control device // Jr. Frank Van Voorhis, // Bell Telephone Labor Inc
PDF File 1883158.pdf 995 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883158-A // Trunk circuit // Ulrich Horace W. // Bell Telephone Labor Inc
PDF File 1883111.pdf 425 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883111-A // Piezo-electric crystal mounting // Thurston George M. // Bell Telephone Labor Inc
PDF File 1883098.pdf 289 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883098-A // Electrical resistance device // Templeton Bryce O. // Bell Telephone Labor Inc
PDF File 1883043.pdf 402 kB Shaun Ewing Oct 18, 1932 00:00
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US-1883043-A // Pouch // Soreny Ernest // Bell Telephone Labor Inc
PDF File 1882994.pdf 327 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882994-A // Electron discharge device // Schwerin Paul // Bell Telephone Labor Inc
PDF File 1882974.pdf 744 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882974-A // Acoustic device // Schlenker Vesper A. // Bell Telephone Labor Inc
PDF File 1882936.pdf 499 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882936-A // Electron discharge device // Ronci Victor L. // Bell Telephone Labor Inc
PDF File 1882893.pdf 519 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882893-A // Sound picture camera // Potts Louis M. // Bell Telephone Labor Inc
PDF File 1882885.pdf 218 kB Shaun Ewing Oct 18, 1932 00:00
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US-1882885-A // Holder for crystal resonators // Polkinghorn Frank A. // Bell Telephone Labor Inc
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