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Charles H. Black
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Des Plaines, IL, US
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last 30 patents
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Patent Grant
High-speed magnetic encoding apparatus and method
Patent number
4,835,624
Issue date
May 30, 1989
Scientific Games of California, Inc.
Charles H. Black
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Optical card reader utilizing area image processing
Patent number
4,760,247
Issue date
Jul 26, 1988
Bally Manufacturing Company
Martin A. Keane
G06 - COMPUTING CALCULATING COUNTING