Name Size Creator Creation Date Labels Comment  
PDF File 2628283.pdf 1.56 MB Shaun Ewing Feb 10, 1953 00:00
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US-2628283-A // Semiautomatic telephone switching system arranged for selective alternating current or direct current key pulsing // Mckim Burton // Bell Telephone Labor Inc
PDF File 2628340.pdf 1.42 MB Shaun Ewing Feb 10, 1953 00:00
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US-2628340-A // Voltage and current regulation // Potter James A. // Bell Telephone Labor Inc
PDF File 2628550.pdf 553 kB Shaun Ewing Feb 17, 1953 00:00
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US-2628550-A // Ventilator for telephone booths // King John H. // Bell Telephone Labor Inc
PDF File 2628936.pdf 831 kB Shaun Ewing Feb 17, 1953 00:00
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US-2628936-A // Method of forming a point at the end of a wire // Albano Vincent J. // Bell Telephone Labor Inc
PDF File 2629006.pdf 1.11 MB Shaun Ewing Feb 17, 1953 00:00
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US-2629006-A // Amplifier circuit having a reactive load // Oliver Bernard M. // Bell Telephone Labor Inc
PDF File 2629010.pdf 959 kB Shaun Ewing Feb 17, 1953 00:00
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US-2629010-A // Television system having reduced transmission bandwidth // Graham Robert E. // Bell Telephone Labor Inc
PDF File 2629011.pdf 792 kB Shaun Ewing Feb 17, 1953 00:00
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US-2629011-A // Television system having reduced transmission bandwidth // Graham Robert E. // Bell Telephone Labor Inc
PDF File 2629016.pdf 15.95 MB Shaun Ewing Feb 17, 1953 00:00
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US-2629016-A // Automatic toll-ticketing system // Gooderham John W. // Bell Telephone Labor Inc
PDF File 2629017.pdf 3.40 MB Shaun Ewing Feb 17, 1953 00:00
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US-2629017-A // Speech transmission system // Dahlbom Carl A. ; Weaver Allan // Bell Telephone Labor Inc
PDF File 2629020.pdf 311 kB Shaun Ewing Feb 17, 1953 00:00
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US-2629020-A // Coordinate selecting and lock-out circuit for interpolated speech transmission // Robertson Donald D. // Bell Telephone Labor Inc
PDF File 2629021.pdf 504 kB Shaun Ewing Feb 17, 1953 00:00
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US-2629021-A // Coordinate switching and lock-out circuit in interpolated speech receiving system // Robertson Donald D. ; Wurmser Alphons V. // Bell Telephone Labor Inc
PDF File 2629024.pdf 319 kB Shaun Ewing Feb 17, 1953 00:00
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US-2629024-A // Unbalanced-to-ground two-to-fourwire connection // Edwards Paul G. // Bell Telephone Labor Inc
PDF File 2629672.pdf 415 kB Shaun Ewing Feb 24, 1953 00:00
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US-2629672-A // Method of making semiconductive translating devices // Sparks Morgan // Bell Telephone Labor Inc
PDF File 2629771.pdf 740 kB Shaun Ewing Feb 24, 1953 00:00
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US-2629771-A // Band-width reduction system // Anderson Alva Eugene ; Sears Raymond W. // Bell Telephone Labor Inc
PDF File 2629772.pdf 1.10 MB Shaun Ewing Feb 24, 1953 00:00
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US-2629772-A // Reduction of phase distortion // Ring Douglas H. // Bell Telephone Labor Inc
PDF File 2629773.pdf 357 kB Shaun Ewing Feb 24, 1953 00:00
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US-2629773-A // Phase adjuster // Hall Nathan I. ; Warren Clifford A. // Bell Telephone Labor Inc
PDF File 2629778.pdf 1.19 MB Shaun Ewing Feb 24, 1953 00:00
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US-2629778-A // Visual representation of complex waves // Potter Ralph K. // Bell Telephone Labor Inc
PDF File 2629779.pdf 710 kB Shaun Ewing Feb 24, 1953 00:00
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US-2629779-A // Signal transmission system // Jr. Walter Koenig, // Bell Telephone Labor Inc
PDF File 2629782.pdf 2.17 MB Shaun Ewing Feb 24, 1953 00:00
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US-2629782-A // Reduction of phase distortion // Ring Douglas H. // Bell Telephone Labor Inc
PDF File 2629783.pdf 664 kB Shaun Ewing Feb 24, 1953 00:00
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US-2629783-A // Telephone circuit // Hopkins Harris F. // Bell Telephone Labor Inc
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