Name Size Creator Creation Date Labels Comment  
PDF File 1964606.pdf 591 kB Shaun Ewing Jun 26, 1934 00:00
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US-1964606-A // Acoustic device // Thuras Albert L. // Bell Telephone Labor Inc
PDF File 1965347.pdf 675 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965347-A // Direction control, switch for signaling systems // Knoop William A. // Bell Telephone Labor Inc
PDF File 1965383.pdf 982 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965383-A // Station circuit for telegraph exchange systems // Lane Cuthbert C. // Bell Telephone Labor Inc
PDF File 1965405.pdf 518 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965405-A // Acoustic device // Blattner David G. // Bell Telephone Labor Inc
PDF File 1965414.pdf 620 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965414-A // Sound picture recording system // Hardy Frank // Bell Telephone Labor Inc
PDF File 1965421.pdf 1.08 MB Shaun Ewing Jul 03, 1934 00:00
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US-1965421-A // Disconnect signal // Locke George A. // Bell Telephone Labor Inc
PDF File 1965423.pdf 385 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965423-A // Telephone substation apparatus // Lum George R. // Bell Telephone Labor Inc
PDF File 1965439.pdf 650 kB Shaun Ewing Jul 03, 1934 00:00
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US-1965439-A // Regulated rectifier circuit // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 1966491.pdf 478 kB Shaun Ewing Jul 17, 1934 00:00
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US-1966491-A // Antenna system // Ferrell Enoch B. // Bell Telephone Labor Inc
PDF File 1966495.pdf 291 kB Shaun Ewing Jul 17, 1934 00:00
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US-1966495-A // Telephone dial illuminator // Fritts Morris // Bell Telephone Labor Inc
PDF File 1966523.pdf 526 kB Shaun Ewing Jul 17, 1934 00:00
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US-1966523-A // Electron discharge device // Ronci Victor L. // Bell Telephone Labor Inc
PDF File 1967223.pdf 829 kB Shaun Ewing Jul 24, 1934 00:00
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US-1967223-A // Vibration transmitting device // Bostwick Lee G. // 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 1967250.pdf 540 kB Shaun Ewing Jul 24, 1934 00:00
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US-1967250-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc
PDF File 1968420.pdf 3.28 MB Shaun Ewing Jul 31, 1934 00:00
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US-1968420-A // Telephone system // Powell Albert C. // Bell Telephone Labor Inc
PDF File 1968429.pdf 790 kB Shaun Ewing Jul 31, 1934 00:00
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US-1968429-A // Sound picture apparatus // Stoller Hugh M. // Bell Telephone Labor Inc
PDF File 1968435.pdf 667 kB Shaun Ewing Jul 31, 1934 00:00
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US-1968435-A // Testing circuit // Bertels Arnold S. // Bell Telephone Labor Inc
PDF File 1968438.pdf 518 kB Shaun Ewing Jul 31, 1934 00:00
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US-1968438-A // Driving mechanism for sound recording and reproducing systems // Elmer Lloyd A. // Bell Telephone Labor Inc
PDF File 1968447.pdf 196 kB Shaun Ewing Jul 31, 1934 00:00
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US-1968447-A // Underground conduit // Hardesty James M. // Bell Telephone Labor Inc
PDF File 1968448.pdf 362 kB Shaun Ewing Jul 31, 1934 00:00
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US-1968448-A // Sound measuring system // Harrison Henry C. // Bell Telephone Labor Inc
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