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Multilevel multiplexing
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Patent number 4,719,624
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Issue date Jan 12, 1988
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Bell Communications Research, Inc.
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Jules A. Bellisio
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Dual mode coding
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Patent number 4,491,953
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Issue date Jan 1, 1985
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AT&T Bell Laboratories
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Jules A. Bellisio
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Count-down addressing system
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Patent number 4,161,634
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Issue date Jul 17, 1979
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Bell Telephone Laboratories, Incorporated
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Jules A. Bellisio
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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