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All Patents in class 279/39
Patents 1 - 12 of 12
First set of recordsLast set of records
20,711Jun. 29, 1858T.R. HopkinsRing Clamp for Engravers
22,635Jan. 18, 1859W.W. DraperFile-handletool handles
RE4,333Apr. 11, 1871W.W. DraperImprovement in tool-holderstool handles
131,829Oct. 01, 1872H.L. PrattBit-stockbrace chucks
149,306Apr. 07, 1874H.C. HartBit-stockbrace chucks
150,046Apr. 21, 1874G.W. HutchinsImprovement in Shoemakers' Awl-Haftscobbler
310,960Jan. 20, 1885J.L. PhillipsWrenchwedge adjust wrenches
323,989Aug. 11, 1885W.S. WashburnBit-stock
331,053Nov. 24, 1885N.H. GriffithWrench
434,026Aug. 12, 1890G.H. Hood, W.H. SeidersTool Chuckbrace chucks
769,725Sep. 13, 1904H.E. BrittonAdjustable Knife-Blade Holderknives and cutters
1,405,625Feb. 07, 1922J. Perkins, Jr.Bit Holder Extensiondrill bit extensions
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