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All Patents in class 72/373
Patents 1 - 6 of 6
First set of recordsLast set of records
46,401Feb. 14, 1865E.C. StilesMilling Machinemilling machines
112,255Feb. 28, 1871W.A. IvesImprovement in Methods of Forming Spur Lips of Auger Bits
623,384Apr. 18, 1899E. RogersAxe/Hatchet Makingmaking axes
960,244Jun. 07, 1910W.G. AllenManufacture of Screws
1,838,470Dec. 29, 1931F.J. VlchekManufacture of Swaged and Tempered Articlesmetalworking machines
2,100,564Nov. 30, 1937E.M. Pfauser, S. MandlMethod of Producung a Pulling Strees and Hydraulic Pulling Mechanism
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