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All Patents in class 74/828
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
71,823Dec. 03, 1867B. WalkerForge Hammerpower hammers
230,612Aug. 03, 1880C.M. BrownPower-hammertrip and helve hammers
1,017,916Feb. 20, 1912G.H. RowePower Hammerpower hammers
1,154,667Sep. 28, 1915H.C. SmithPower-Hammerpower hammers
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