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Patents for Walker A. Dromgold
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
310,821Jan. 13, 1885W.A. Dromgold, S.N. HenchCultivator spring-hoecultivators and tillers
348,208Aug. 31, 1886W.A. Dromgold, S.N. HenchCultivatorcultivators and tillers
402,079Apr. 23, 1889W.A. Dromgold, S.N. HenchSpring-tooth harrowharrows
419,990Jan. 21, 1890W.A. Dromgold, S.N. HenchSpring-tooth harrowharrows
488,906Dec. 27, 1892W.A. Dromgold, S.N. Hench, J.N. RicheySawmill-dogsawmill dogs
491,447Feb. 07, 1893W.A. Dromgold, S.N. Hench, E.A. ReeseMechanism for operating sawmill-carriagessawmill carriages
491,494Feb. 07, 1893W.A. Dromgold, S.N. Hench, J.N. RicheyMechanism for operating sawmill-carriagessawmill carriages
540,618Jun. 04, 1895W.A. Dromgold, S.N. HenchHarrowharrows
555,699Mar. 03, 1896W.A. Dromgold, S.N. HenchHarrowharrows
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