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All Patents in class 470/191
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,448XFeb. 28, 1833T. AllenManufacturing coopers' rivetscooper
RE43Jul. 08, 1842T. AllenImprovement in Machines for Making Coopers' Rivets and Other Rivetsrivet making machines
929,628Jul. 27, 1909A.C. PilcherRivet-ejector for heading-machines
1,961,442Jun. 05, 1934D.E. JohnsonTool Holdermetalworking machine tool holders
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