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All Patents in class 173/99
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
52,447Feb. 06, 1866A. RixForging Apparatusdrop hammers
655,028Jul. 31, 1900W. SnellerRotary Draw Block Hammerrotary hammers
809,348Jan. 09, 1906M.T. WestonPower Hammerrotary hammers
1,024,025Apr. 23, 1912G.H. RowePercussion deviceimpact chisels and drills
1,082,880Dec. 30, 1913J.S. KnowlsonMechanical hammerminer
1,124,393Jan. 12, 1915G.H. CoatesHammer powered by flexible shafthandheld power tools
1,725,212Aug. 20, 1929F. SchneiderPower hammer
2,271,933Feb. 03, 1942G.D. BehlenPower hammerhandheld power tools
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