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All Patents in class 172/627
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
16,933Mar. 31, 1857J.E. MorganImprovement in Harrows
120,195Oct. 24, 1871E.W. HerendeenImprovement in harrows
540,618Jun. 04, 1895W.A. Dromgold, S.N. HenchHarrow
555,699Mar. 03, 1896W.A. Dromgold, S.N. HenchHarrow
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