2 trademarks were found for owners matching the name Michael Anthony Williamson.
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1 TM: 594409
Desc: PMC
Owner: Michael Anthony Williamson
Class: 36
Status: Lapsed: Registration fee not paid on time
2 TM: 234160
Desc: KINKI
Owner: Michael Anthony Williamson, Marcia Litchfield Williamson
Class: 16
Status: Refused: Pre 1995 refused