Assignee

PHILLIPS GEORGE K

US·1 granted patent·46 citations·filing 1993–1993

Technology mixB41M1 B42D1 G07D1

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0189US5344192AVisual validation mark for bank checks and other security documentsPHILLIPS GEORGE K·Filed 1993·Granted Sep 6, 1994·46 cites·6 claims

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