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All Patents in class 29/DIG.93
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
162,194Apr. 20, 1875E. SchlenkerImprovement in bolt-threading machinesmetal threading machines
288,717Nov. 20, 1883A.W. McIntyreMachine for Grinding Car Wheelsgrinding machines
1,635,702Jul. 12, 1927E.P. Bullard, Jr.Cutting Compound Distribution Systemmetalworking machine mechanisms
1,903,114Mar. 28, 1933J.B. Armitage, E.J. KearneyMachine Toolmilling machines
2,209,071Jul. 23, 1940E.J. BullardGrinding and Lapping Machinelapping machines
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