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All Patents in class 172/753
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,130XSep. 01, 1819J. WoodPlowplows
6,883XDec. 28, 1831J. DeatsPloughplows
7,499XMar. 25, 1833H.S. (Spielman), D. MillerPloughplows
7,876XDec. 19, 1833P. HastingsImprovement on Barnard's ploughplows
7,896XDec. 26, 1833A. TaylorCast iron ploughplows
9,142XOct. 06, 1835W. WalkerPloughplows
9,626XApr. 28, 1836N. LocklinPloughplows
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