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Patents for Walter Nipken
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,499,408Mar. 07, 1950W. NipkenWork holderwork holding
2,623,440Dec. 30, 1952W. NipkenUnitary work holderwork holding
2,744,311May 08, 1956E. Nipken, W. NipkenDrill extractordrilling and boring
2,771,297Nov. 20, 1956W. NipkenAdjustable stop for a collet or the likework holding
2,823,563Feb. 18, 1958W. NipkenDepth control attachment for a drill or the likedrilling and boring
2,915,925Dec. 08, 1959W. NipkenDepth control attachment for a drill or the likedrilling and boring
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