Name Size Creator Creation Date Labels Comment  
PDF File 2710349.pdf 456 kB Shaun Ewing Jun 07, 1955 00:00
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US-2710349-A // Voltage regulation for electron tube // Gratian Joseph W. // Stromberg Carlson Co
PDF File 3676606.pdf 451 kB Shaun Ewing Jul 11, 1972 00:00
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US-3676606-A // Camp-on busy checking and monitor circuit // Klaus Gueldenpfennig ; Uwe A. Pommerening ; Stanley L. Russell // Stromberg Carlson Corp
PDF File 1555683.pdf 448 kB Shaun Ewing Sept 29, 1925 00:00
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US-1555683-A // Impulse transmitter // Manson Ray H. // Stromberg Carlson Telephone
PDF File 545921.pdf 448 kB Shaun Ewing Sept 10, 1895 00:00
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US-545921-A // strombergk a // Alfked Steomberg, Androv And Herbert L. Knight Of Chicago Illinois; Knight // Stromberg And Carlson.
PDF File 3626103.pdf 448 kB Shaun Ewing Dec 07, 1971 00:00
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US-3626103-A // Route selector arrangement with all-trunk availability // Ramses R. Mina ; Gunter F. Neumeler // Stromberg Carlson Corp
PDF File 2513722.pdf 446 kB Shaun Ewing Jul 04, 1950 00:00
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US-2513722-A // Periodic wave generator // Jr. Leslie M. Harris, // Stromberg Carlson Co
PDF File 3610834.pdf 446 kB Shaun Ewing Oct 05, 1971 00:00
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US-3610834-A // Low-level duplex signalling system for telephone networks // Klaus Gueldenpfennig ; Frank Churnetski ; Enrique Comas // Stromberg Carlson Corp
PDF File 2702879.pdf 444 kB Shaun Ewing Feb 22, 1955 00:00
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US-2702879-A // Rectifier network // Wheeler John L. // Stromberg Carlson Co
PDF File 679805.pdf 444 kB Shaun Ewing Aug 06, 1901 00:00
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US-679805-A // Test system for multiple switchboards. // Harry G. Webster // Stromberg Carlson Telephone
PDF File 2154311.pdf 444 kB Shaun Ewing Apr 11, 1939 00:00
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US-2154311-A // Wave signaling system // Levy Maurice L. // Stromberg Carlson Telephone
PDF File 3731012.pdf 444 kB Shaun Ewing May 01, 1973 00:00
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US-3731012-A // Current limiting and resistance monitoring circuit // Shaffer W,us // Stromberg Carlson Corp
PDF File 3532828.pdf 443 kB Shaun Ewing Oct 06, 1970 00:00
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US-3532828-A // Marking of originating and termination calls // Gerhard O.k. Schneider // Stromberg Carlson Corp
PDF File 2684407.pdf 443 kB Shaun Ewing Jul 20, 1954 00:00
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US-2684407-A // Selector // Pharis William W. // Stromberg Carlson Co
PDF File 2241126.pdf 440 kB Shaun Ewing May 06, 1941 00:00
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US-2241126-A // Retracting mechanism for switchboards and the like // Godfrey Harold D. // Stromberg Carlson Telephone
PDF File 3551600.pdf 439 kB Shaun Ewing Dec 29, 1970 00:00
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US-3551600-A // High capacity,high side-tone suppression,4-wire conference circuit // William H. Berch // Stromberg Carlson Corp
PDF File 3699265.pdf 439 kB Shaun Ewing Oct 17, 1972 00:00
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US-3699265-A // Line lockout circuit // Otto Altenburger // Stromberg Carlson Corp
PDF File 747602.pdf 437 kB Shaun Ewing Dec 22, 1903 00:00
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US-747602-A // Battery-transmitter. // John S. Goldberg // Stromberg Carlson Telephone
PDF File 2575199.pdf 436 kB Shaun Ewing Nov 13, 1951 00:00
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US-2575199-A // Wide-range tuning device for use at ultrahigh frequencies // Stutt Charles A. // Stromberg Carlson Co
PDF File 3653018.pdf 436 kB Shaun Ewing Mar 28, 1972 00:00
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US-3653018-A // Monitor circuit // Ignas Budrys // Stromberg Carlson Corp
PDF File 2409588.pdf 436 kB Shaun Ewing Oct 15, 1946 00:00
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US-2409588-A // Telephone substation apparatus // Reed Leland A. // Stromberg Carlson Co
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