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All Patents in class 29/DIG.93
Patents 1 - 6 of 6
First set of recordsLast set of records
162,194Apr. 20, 1875E. SchlenkerImprovement in bolt-threading machinesmetal threading machines
288,717Nov. 20, 1883A.W. McIntyreMachine for Grinding Car Wheelsgrinding machines
406,003Jun. 25, 1889G.T. ReissTurret-latheturret lathes
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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