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Patents Granted on 1992-12-??
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
5,170,689Dec. 15, 1992J. DvorakMetal working machinemetal punching machines
5,174,693Dec. 29, 1992R.C. Lee, L.G. Lee, F.A. McLeanDrilling jig
5,174,742Dec. 29, 1992G.A. PutneyRotary Air Motor with Curved Tangential Vanes
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