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All Patents in class 29/DIG.91
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
157,700Dec. 15, 1874C. SellersMachines for Threading Bolts
1,076,947Oct. 28, 1913E.P. Bullard, Jr.Cutting Lubricant Attachment for Machine Toolsmetalworking machine mechanisms
1,076,948Oct. 28, 1913E.P. Bullard, Jr.Cutting-Lubricant Device for Machine-Toolsmetalworking machine lubrication
1,700,114Jan. 22, 1929C.H. ThompsonSurface Polishing Machinepolishing and buffing machinery
2,063,756Dec. 08, 1936E.G. Roehm, M. RomaineBroaching Machinebroaching machines
2,073,079Mar. 09, 1937W. Peaslee, G.V. Johnston, F.J. ThelerLapping Machinegrinding machines
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