Master key identification and feedback system | Patent Number 09558236
US 09558236 B1Filled DateApr 5, 2012
Priority DateJul 15, 2010
Publication Date-
Expiration DateJul 14, 2030
Inventor/ApplicantsMark Yeary
George Lynn Hagen
Mike Mueller
Kenneth C. Booth
George Lynn Hagen
Mike Mueller
Kenneth C. Booth
ExaminesDANG, THANH HA T
Art Unit2163
Technology Center2100
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