-
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Call completion circuit and method
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Patent number 4,451,705
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Issue date May 29, 1984
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Bell Telephone Laboratories, Incorporated
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Edmund T. Burke
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Voice and data switching arrangement
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Patent number 4,291,200
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Issue date Sep 22, 1981
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Bell Telephone Laboratories, Incorporated
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Nicholas K. Smith
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Time division line interface circuit
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Patent number 4,143,246
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Issue date Mar 6, 1979
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Bell Telephone Laboratories, Incorporated
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Nicholas K. Smith
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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