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David A. Shick
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Mission Viejo, CA, US
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last 30 patents
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Patent Grant
Communications network
Patent number
4,999,771
Issue date
Mar 12, 1991
Control Data Corporation
John T. Ralph
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Data communications system
Patent number
4,841,526
Issue date
Jun 20, 1989
Jon C. Wilson
H04 - ELECTRIC COMMUNICATION TECHNIQUE