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All Patents in class 72/441
Patents 16 - 30 of 56
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NumberDatePatenteeTitleType
500,970Jul. 04, 1893A. SperlForging Hammerdrop hammers
503,492Aug. 15, 1893O.W. OrcuttPower Hammerpower hammers
514,787Feb. 13, 1894W. Laird, J.B. SweeneyPower Hammerpower hammers
526,370Sep. 25, 1894A. BeaudryPower Hammerpower hammers
529,634Nov. 20, 1894R.W. Laird, J.B. SweeneyPower Hammerpower hammers
545,763Sep. 03, 1895A. BeaudryPower Hammerpower hammers
606,370Jun. 28, 1898C.A. VuughnPower Hammerpower hammers
607,510Jul. 19, 1898J.E. HermannMetal Beater Hammerpower hammers
610,745Sep. 13, 1898P. HolmbergAdjusting Arrangement for Spring Power Hammers, &c.power hammers
612,949Oct. 25, 1898W.H. LawPower Hammerpower hammers
625,870May 30, 1899W.U. BurgettFoot Power Hammerfoot operated hammers
642,070Jan. 30, 1900E.H. BlossomPower-hammerdrop hammers
674,711May 21, 1901A. SackPower Hammerpower hammers
709,577Sep. 23, 1902L.D. HowardDrop-hammerblacksmith
736,971Aug. 25, 1903W.R. JenkinsPower Hammerpower hammers
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