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All Patents of Type: power hammers
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
GB-186,400,206Jan. 25, 1864W.D. GrimshawAtmospheric Hammerpower hammers
45,896Jan. 10, 1865W.D. GrimshawAtmospheric Hammerpower hammers
GB-188,702,373Feb. 18, 1886J. WildImprovements in power hammerspower hammers
816,291Mar. 27, 1906C.W. BlackstonePower Hammerpower hammers
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