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All Patents in class 82/79
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
235,022Nov. 30, 1880J.T. RidgwayAutomatic Attachments to Lathes Cutting Rubber and Other Ringsmetal lathe accessories and attachments
648,602May 01, 1900J.E. Thropp, Jr.Machine for Cutting Rubber Sealing Rings for Jars, &c.material cutting machines
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