Name Size Creator Creation Date Labels Comment  
PDF File 2704790.pdf 457 kB Shaun Ewing Mar 22, 1955 00:00
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US-2704790-A // Reduction of noise level in magnetic recording systems by use of a.-c. bias and/or d.-c. correction of asymmetry // Gratian Joseph W. // Stromberg Carlson Co
PDF File 2704787.pdf 1.00 MB Shaun Ewing Mar 22, 1955 00:00
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US-2704787-A // Telephone trunk supervisory circuit // Pharis William W. // Stromberg Carlson Co
PDF File 2704308.pdf 564 kB Shaun Ewing Mar 15, 1955 00:00
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US-2704308-A // Howler circuit for telephone systems // Kessler Frank // Stromberg Carlson Co
PDF File 2703342.pdf 672 kB Shaun Ewing Mar 01, 1955 00:00
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US-2703342-A // Transmission of control signals in a telecommunication system // Reagan Leon H. // Stromberg Carlson Co
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 2702832.pdf 776 kB Shaun Ewing Feb 22, 1955 00:00
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US-2702832-A // Telephone system // Pharis William W. // Stromberg Carlson Co
PDF File 2702831.pdf 914 kB Shaun Ewing Feb 22, 1955 00:00
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US-2702831-A // Ringing control circuit for telephone systems // Elliott George ; Pharis William W. // Stromberg Carlson Co
PDF File 2702314.pdf 1.43 MB Shaun Ewing Feb 15, 1955 00:00
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US-2702314-A // Conversation timing means // Pharis William W. // Stromberg Carlson Co
PDF File 2701283.pdf 510 kB Shaun Ewing Feb 01, 1955 00:00
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US-2701283-A // Stepping switch // Droel Louis W. // Stromberg Carlson Co
PDF File 2701278.pdf 791 kB Shaun Ewing Feb 01, 1955 00:00
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US-2701278-A // Connector circuits // Pharis William W. // Stromberg Carlson Co
PDF File 2700069.pdf 1.69 MB Shaun Ewing Jan 18, 1955 00:00
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US-2700069-A // Measured service telephone system // Pharis William W. ; Reagan Leon H. // Stromberg Carlson Co
PDF File 2697781.pdf 839 kB Shaun Ewing Dec 21, 1954 00:00
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US-2697781-A // Automatic ring starting circuit // Trousdale Robert B. // Stromberg Carlson Co
PDF File 2697135.pdf 336 kB Shaun Ewing Dec 14, 1954 00:00
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US-2697135-A // Magnetic recording head // Gratian Joseph W. // Stromberg Carlson Co
PDF File 2695954.pdf 683 kB Shaun Ewing Nov 30, 1954 00:00
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US-2695954-A // Pulse modulation reconstructor circuit // Trousdale Robert B. // Stromberg Carlson Co
PDF File 2694750.pdf 2.40 MB Shaun Ewing Nov 16, 1954 00:00
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US-2694750-A // Digit canceling system // Trousdale Robert B. // Stromberg Carlson Co
PDF File 2694172.pdf 1.37 MB Shaun Ewing Nov 09, 1954 00:00
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US-2694172-A // Direct current power supply // Trousdale Robert B. // Stromberg Carlson Co
PDF File 2691071.pdf 953 kB Shaun Ewing Oct 05, 1954 00:00
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US-2691071-A // Party line station identification dial mechanism // Maccheyne George W. // Stromberg Carlson Co
PDF File 2691070.pdf 930 kB Shaun Ewing Oct 05, 1954 00:00
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US-2691070-A // Party line station identification dial mechanism // Morris Frank A. // Stromberg Carlson Co
PDF File 2691069.pdf 767 kB Shaun Ewing Oct 05, 1954 00:00
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US-2691069-A // Telephone intercept circuit // Frankel Theodor // Stromberg Carlson Co
PDF File 2691068.pdf 2.75 MB Shaun Ewing Oct 05, 1954 00:00
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US-2691068-A // Two-way carrier type trunk circuit // Pharis William W. // Stromberg Carlson Co
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