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All Patents in class 384/520
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
822,723Jun. 05, 1906R. ConradBall-bearingindustrial machine bearings
1,622,880Mar. 29, 1927H.A. PerkinsRadial bearingwoodworking machine mechanisms
2,696,569Dec. 07, 1954H.W. SchumannMotor Toolhandheld grinders
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