Name Size Creator Creation Date Labels Comment  
PDF File 2506609.pdf 424 kB Shaun Ewing May 09, 1950 00:00
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US-2506609-A // Ring armature telephone receiver // Mott Edward E. // Bell Telephone Labor Inc
PDF File 2410434.pdf 424 kB Shaun Ewing Nov 05, 1946 00:00
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US-2410434-A // Telephone // Edwards William H. ; Richardson Max S. // Bell Telephone Labor Inc
PDF File 2410840.pdf 424 kB Shaun Ewing Nov 12, 1946 00:00
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US-2410840-A // Electron beam modulator // Samuel Arthur L. // Bell Telephone Labor Inc
PDF File 2443619.pdf 423 kB Shaun Ewing Jun 22, 1948 00:00
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US-2443619-A // Pulse generator of the shockexcited type // Hopper Andrew L. // Bell Telephone Labor Inc
PDF File 2395300.pdf 423 kB Shaun Ewing Feb 19, 1946 00:00
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US-2395300-A // Electrical device // Slauson William C. // Bell Telephone Labor Inc
PDF File 2458586.pdf 422 kB Shaun Ewing Jan 11, 1949 00:00
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US-2458586-A // Self-synchronous system // Giroud Henry A. // Bell Telephone Labor Inc
PDF File 2471970.pdf 422 kB Shaun Ewing May 31, 1949 00:00
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US-2471970-A // Wiring device // Miloche Herman A. // Bell Telephone Labor Inc
PDF File 2461832.pdf 422 kB Shaun Ewing Feb 15, 1949 00:00
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US-2461832-A // Phase shifting apparatus // Meacham Larned A. // Bell Telephone Labor Inc
PDF File 2434286.pdf 421 kB Shaun Ewing Jan 13, 1948 00:00
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US-2434286-A // Method of forming a point at the end of a wire // Pfann William G. // Bell Telephone Labor Inc
PDF File 2406042.pdf 421 kB Shaun Ewing Aug 20, 1946 00:00
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US-2406042-A // Carrier telegraph system // Shanck Roy B. // Bell Telephone Labor Inc
PDF File 2401751.pdf 421 kB Shaun Ewing Jun 11, 1946 00:00
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US-2401751-A // Coupling system // Friis Harald T. // Bell Telephone Labor Inc
PDF File 2442791.pdf 421 kB Shaun Ewing Jun 08, 1948 00:00
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US-2442791-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc
PDF File 2404799.pdf 420 kB Shaun Ewing Jul 30, 1946 00:00
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US-2404799-A // Submarine signal device // Harry William R. ; Romanow Frank F. // Bell Telephone Labor Inc
PDF File 2441596.pdf 420 kB Shaun Ewing May 18, 1948 00:00
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US-2441596-A // Mechanism for adjusting the amount of travel of riders on lead screws // Reitter George E. // Bell Telephone Labor Inc
PDF File 2409636.pdf 420 kB Shaun Ewing Oct 22, 1946 00:00
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US-2409636-A // Welding machine // Little John B. // Bell Telephone Labor Inc
PDF File 2444027.pdf 419 kB Shaun Ewing Jun 29, 1948 00:00
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US-2444027-A // Directly heated thermocouple // Becker Joseph A. ; Shive John N. ; Griffith Thomas R. // Bell Telephone Labor Inc
PDF File 2532699.pdf 419 kB Shaun Ewing Dec 05, 1950 00:00
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US-2532699-A // Sealing composition // Coste John B. De // Bell Telephone Labor Inc
PDF File 2408423.pdf 419 kB Shaun Ewing Oct 01, 1946 00:00
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US-2408423-A // High frequency amplifying apparatus // Hartley Ralph V. L. // Bell Telephone Labor Inc
PDF File 2447032.pdf 419 kB Shaun Ewing Aug 17, 1948 00:00
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US-2447032-A // Contact maker and breaker // Shann Oscar A. // Bell Telephone Labor Inc
PDF File 2391954.pdf 418 kB Shaun Ewing Jan 01, 1946 00:00
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US-2391954-A // Wave stabilizer // Dysart Birney // Bell Telephone Labor Inc
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