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Patents Granted on 1981-05-__
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,266,120May 05, 1981R. JohnstoneUnmanned machining center with tool checking
CA-1,100,743May 12, 1981C.B. Sipek, R.B. Clegg, R. JohnstoneTool storage magazine for a machine tooltool changers and storage mechanisms
4,266,583May 12, 1981C.E. Kirk, O.E. RaabSpindle turning toolturning chisels
4,267,627May 19, 1981R. DouglasAttachment for Valve Spring Depressing Toolvalve spring tools
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