Name Size Creator Creation Date Labels Comment  
PDF File 746314.pdf 409 kB Shaun Ewing Dec 08, 1903 00:00
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US-746314-A // Telephone switching apparatus. // Nels August Engstrom // Stromberg Carlson Telephone
PDF File 1229634.pdf 409 kB Shaun Ewing Jun 12, 1917 00:00
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US-1229634-A // Telephone-transmitter. // Ray H. Manson // Stromberg Carlson Telephone
PDF File 2587697.pdf 407 kB Shaun Ewing Mar 04, 1952 00:00
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US-2587697-A // Apparatus for testing amplifiers // Conrad Matthew // Stromberg Carlson Co
PDF File 3466446.pdf 407 kB Shaun Ewing Sept 09, 1969 00:00
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US-3466446-A // Light-operated sound-signal telephone transmitter and transmission system // Matthew Fassett // Stromberg Carlson Corp
PDF File 2411656.pdf 406 kB Shaun Ewing Nov 26, 1946 00:00
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US-2411656-A // Coaxial bushing // Henderson Kenneth L. ; Mers Edward F. De // Stromberg Carlson Co
PDF File 765489.pdf 406 kB Shaun Ewing Jul 19, 1904 00:00
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US-765489-A // Plug-seat switch for telephone-switchboards. // William Kaisling // Stromberg Carlson Telephone
PDF File 1688605.pdf 406 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688605-A // Electrical and instrument cord // Williams John D. // Stromberg Carlson Telephone
PDF File 2462532.pdf 406 kB Shaun Ewing Feb 22, 1949 00:00
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US-2462532-A // Sound system which compensates for variable noise levels // Morris Frank A. // Stromberg Carlson Co
PDF File 1435931.pdf 405 kB Shaun Ewing Nov 21, 1922 00:00
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US-1435931-A // Telephone system // Jr. John H. Levis, // Stromberg Carlson Telephone
PDF File 2658113.pdf 405 kB Shaun Ewing Nov 03, 1953 00:00
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US-2658113-A // Means for improving the performance of magnetic sound recording and reproducing heads // Holmes Lynn C. // Stromberg Carlson Co
PDF File 2055796.pdf 405 kB Shaun Ewing Sept 29, 1936 00:00
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US-2055796-A // Signaling system // Levy Maurice L. // Stromberg Carlson Telephone
PDF File 3535460.pdf 403 kB Shaun Ewing Oct 20, 1970 00:00
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US-3535460-A // Cooperative linefinder arrangements for step-by-step telephone exchanges // Ramses R. Mina ; William W. Pharis // Stromberg Carlson Corp
PDF File 3453710.pdf 400 kB Shaun Ewing Jul 08, 1969 00:00
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US-3453710-A // Method of manufacturing pin faceplate // Alexander Bell // Stromberg Carlson Corp
PDF File 697993.pdf 400 kB Shaun Ewing Apr 22, 1902 00:00
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US-697993-A // Telephone-exchange system. // William M. Davis // Stromberg Carlson Telephone
PDF File 1050532.pdf 398 kB Shaun Ewing Jan 14, 1913 00:00
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US-1050532-A // Party-line telephone system. // Bernard C. Groh // Stromberg Carlson Telephone
PDF File 1215566.pdf 398 kB Shaun Ewing Feb 13, 1917 00:00
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US-1215566-A // Circuit-controller. // Ray H. Manson // Stromberg Carlson Telephone
PDF File 3622865.pdf 397 kB Shaun Ewing Nov 23, 1971 00:00
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US-3622865-A // Current limiting switching circuit // Ernest O. Lee Jr. // Stromberg Carlson Corp
PDF File 2055790.pdf 397 kB Shaun Ewing Sept 29, 1936 00:00
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US-2055790-A // Radio signal receiving system // Graham Virgil M. // Stromberg Carlson Telephone
PDF File 743951.pdf 397 kB Shaun Ewing Nov 10, 1903 00:00
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US-743951-A // Telephone-transmitter. // Alfred Stromberg // Stromberg Carlson Telephone
PDF File 2434069.pdf 393 kB Shaun Ewing Jan 06, 1948 00:00
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US-2434069-A // Electronically regulated power supply // Goldberg Harold // Stromberg Carlson Co
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