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All Patents in class 16/DIG.27
Patents 1 - 6 of 6
First set of recordsLast set of records
147,760Feb. 24, 1874A.H. Frank, G. SpireImprovement in spindleswoodworking machine lubrication
335,527Feb. 02, 1886W. KratzerAnti-friction journal-bearingindustrial machine bearings
822,723Jun. 05, 1906R. ConradBall-bearingindustrial machine bearings
908,872Jan. 05, 1909G.O. LeopoldBall bearing
1,005,538Oct. 10, 1911W.A. GreavesTail-stockwood lathes
1,059,313Apr. 15, 1913H.A. PerkinsStep bearing for machinerywoodworking machine mechanisms
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