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All Patents in class 29/DIG.066
Patents 1 - 6 of 6
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
365,744Jun. 28, 1887J.W. HeyerDrilling-machine
  928,758Jul. 20, 1909E.E. HoughtonPneumatic attachment for mortising machines
1,090,299Mar. 17, 1914A.M. Harrington, R.F. ScottBolt-cutting machine
1,208,289Dec. 12, 1916F.M. CarrollGun-barrel-drilling machine
1,513,350Oct. 28, 1924J.W. StolleMeans for and method of drilling deep holes in wood
2,372,699Apr. 03, 1945H.V. Boehnke, C.A. WikenCutting machine
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