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All Patents in class 73/796
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
278,917Jun. 05, 1883A.H. EmeryMachine for testing the strength of materialstesting machines
278,918Jun. 05, 1883A.H. EmeryMachinery for testing the strength of metaltesting machines
552,873Jan. 07, 1896C.G. Barth, J.S. Bancroft, W. SellersTesting Machinetesting machines
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