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Patents Granted on 1981-05-19
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,267,627May 19, 1981R. DouglasAttachment for Valve Spring Depressing Toolvalve spring tools
4,267,671May 19, 1981R. RettewPositioning Of An Abrasive Belt On A Grinding Machinesurface grinders
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