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Bus monitor system
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Patent number 5,729,678
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Issue date Mar 17, 1998
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AG Communication Systems Corporation
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Jeffrey Glenn Hunt
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G06 - COMPUTING CALCULATING COUNTING
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Expandable electronic matrix
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Patent number 4,677,436
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Issue date Jun 30, 1987
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GTE Communication Systems Corporation
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Christopher M. Burlingame
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G11 - INFORMATION STORAGE
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Digital span conversion circuit
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Patent number 4,598,268
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Issue date Jul 1, 1986
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GTE Automatic Electric Inc.
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Thomas J. Perry
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital span reframing circuit
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Patent number 4,531,210
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Issue date Jul 23, 1985
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GTE Automatic Electric Incorporated
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Thomas J. Perry
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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