2 trademarks were found for owners matching the name William Charles Colthurst.
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1 TM: 1444968
Desc:
Owner: William Charles Colthurst
Class: 28
Status: Registered: Registered/protected
2 TM: 1444970
Desc: Seamaster
Owner: William Charles Colthurst
Class: 28
Status: Registered: Registered/protected