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Patents Granted on 1981-06-??
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,270,275Jun. 02, 1981D.R. McMurtryProbes
4,270,743Jun. 02, 1981C.P. CromptonForward numbering or underlap sheet delivery
4,272,216Jun. 09, 1981J.G. OsburnMachine Tool Lubrication Systemmetalworking machine lubrication
4,274,231Jun. 23, 1981J. VeregaMethod and Apparatus for Dressing a Grinding Wheelgrinder dressers
4,274,309Jun. 23, 1981P.E. LenkerMethod of Manufacture of Certain Hand Wrenches and the Likeratchet wrenches
CA-1,103,992Jun. 30, 1981M.J. NealAdjustable vane centrifugal pump impeller construction
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