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Trunk adapter
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Patent number 4,002,850
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Issue date Jan 11, 1977
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Stromberg-Carlson Corporation
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Glenn L. Richards
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Timer associated with CB relay
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Patent number 3,999,018
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Issue date Dec 21, 1976
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Stromberg-Carlson Corporation
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Uwe A. Pommerening
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Trunk consultation arrangement
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Patent number 3,975,596
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Issue date Aug 17, 1976
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Stromberg-Carlson Corporation
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Uwe A. Pommerening
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Tie trunk control arrangement
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Patent number 3,952,165
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Issue date Apr 20, 1976
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Stromberg-Carlson Corporation
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Uwe A. Pommerening
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Trunk transfer circuit
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Patent number 3,936,615
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Issue date Feb 3, 1976
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Stromberg-Carlson Corporation
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Uwe A. Pommerening
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H04 - ELECTRIC COMMUNICATION TECHNIQUE