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All Patents in class 173/216
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
273,136Feb. 27, 1883A. NotemanPortable steam boring-engineportable timber borers
802,713Oct. 24, 1905Z. ScottAuger-brace
956,822May 03, 1910M.F. ParsonsGrinding Toolvalve grinding tools
2,155,082Apr. 18, 1939A.G. DeckerPortable electric tool and casinghandheld power drills
2,310,759Feb. 09, 1943I.C. ClawsonDrill with Adjustable Headeggbeater drills
2,857,793Oct. 28, 1958L. PèrasTorque-Limiting Tool Holder for Machine Toolsdrilling and boring tool holders
6,199,642Mar. 13, 2001D.A. Nowak, J.M. Beer, T.P. BeckerReversible Ratchet Power Tool with Synchronized Motor and Ratchet Control
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