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Patents Granted on 1981-01-__
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,242,926Jan. 06, 1981N.T. AntonDevice for sharpening saw chains
4,246,811Jan. 27, 1981F.L. Heim, J.R. BondhusBall head polygonal wrenchwrenches
4,246,943Jan. 27, 1981G.L. CroomeensInfeed assembly for random length end shaping machinesjoint making machines
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