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Broadband switch
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Patent number 5,465,087
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Issue date Nov 7, 1995
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GTE Laboratories Incorporated
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Michael Cooperman
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Data communication system
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Patent number 5,268,931
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Issue date Dec 7, 1993
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GTE Laboratories Incorporated
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Michael Cooperman
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Crosspoint switching array
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Patent number 4,818,988
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Issue date Apr 4, 1989
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GTE Laboratories Incorporated
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Michael Cooperman
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital switching system
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Patent number 4,656,621
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Issue date Apr 7, 1987
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GTE Laboratories Incorporated
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Michael Cooperman
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G11 - INFORMATION STORAGE
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