Name Size Creator Creation Date Labels Comment  
PDF File 2760170.pdf 225 kB Shaun Ewing Aug 21, 1956 00:00
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US-2760170-A // High frequency attenuator means // May Allan S. // Bell Telephone Labor Inc
PDF File 2760171.pdf 610 kB Shaun Ewing Aug 21, 1956 00:00
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US-2760171-A // Wave-guide mode filter // King Archie P. // Bell Telephone Labor Inc
PDF File 2760731.pdf 290 kB Shaun Ewing Aug 28, 1956 00:00
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US-2760731-A // Wire wrapping tool for stranded wire // Belek Emil // Bell Telephone Labor Inc
PDF File 2761020.pdf 591 kB Shaun Ewing Aug 28, 1956 00:00
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US-2761020-A // Frequency selective semiconductor circuit elements // Shockley William // Bell Telephone Labor Inc
PDF File 2761508.pdf 1.51 MB Shaun Ewing Sept 04, 1956 00:00
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US-2761508-A // Tape perforator // Goff Harold W. // Bell Telephone Labor Inc
PDF File 2761894.pdf 6.40 MB Shaun Ewing Sept 04, 1956 00:00
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US-2761894-A // Telegraph switching system with message numbering // Locke George A. // Bell Telephone Labor Inc
PDF File 2761899.pdf 2.12 MB Shaun Ewing Sept 04, 1956 00:00
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US-2761899-A // Apparatus for recording and reproducing telephone messages // Keith Clyde R. ; Nickerson Clifford A. // Bell Telephone Labor Inc
PDF File 2761900.pdf 4.37 MB Shaun Ewing Sept 04, 1956 00:00
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US-2761900-A // Telephone system of the coin controlled type // Jr. Amos E. Joel, // Bell Telephone Labor Inc
PDF File 2761909.pdf 578 kB Shaun Ewing Sept 04, 1956 00:00
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US-2761909-A // Multifrequency oscillator // Jr. Robert L. Wallace, // Bell Telephone Labor Inc
PDF File 2761915.pdf 916 kB Shaun Ewing Sept 04, 1956 00:00
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US-2761915-A // Helix couplers // Pierce John R. // Bell Telephone Labor Inc
PDF File 2762865.pdf 997 kB Shaun Ewing Sept 11, 1956 00:00
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US-2762865-A // Trunk circuit // Jr. George F. Abbott, // Bell Telephone Labor Inc
PDF File 2762867.pdf 384 kB Shaun Ewing Sept 11, 1956 00:00
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US-2762867-A // Subscriber telephone circuit // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 2762981.pdf 743 kB Shaun Ewing Sept 11, 1956 00:00
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US-2762981-A // Mode conversion in wave guides // Jr. Samuel P. Morgan, // Bell Telephone Labor Inc
PDF File 2762982.pdf 1.46 MB Shaun Ewing Sept 11, 1956 00:00
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US-2762982-A // Mode conversion in wave guides // Jr. Samuel P. Morgan, // Bell Telephone Labor Inc
PDF File 2763050.pdf 447 kB Shaun Ewing Sept 18, 1956 00:00
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US-2763050-A // Crystal unit inductance adjustment // Ciccolella David F. // Bell Telephone Labor Inc
PDF File 2763548.pdf 229 kB Shaun Ewing Sept 18, 1956 00:00
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US-2763548-A // Titanium and zirconium alloys // Corenzwit Ernest ; Matthias Bernd T. // Bell Telephone Labor Inc
PDF File 2763718.pdf 571 kB Shaun Ewing Sept 18, 1956 00:00
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US-2763718-A // Field synchronizing pulse selector // Collins Ted R. D. // Bell Telephone Labor Inc
PDF File 2763726.pdf 2.40 MB Shaun Ewing Sept 18, 1956 00:00
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US-2763726-A // Telephone ringing-signal transmission system // Weller David C. // Bell Telephone Labor Inc
PDF File 2763731.pdf 331 kB Shaun Ewing Sept 18, 1956 00:00
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US-2763731-A // Semiconductor signal translating devices // Pfann William G. // Bell Telephone Labor Inc
PDF File 2763737.pdf 394 kB Shaun Ewing Sept 18, 1956 00:00
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US-2763737-A // Damping device for lever type keys // Barber Charles C. // Bell Telephone Labor Inc
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