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All Patents in class 279/36
Patents 16 - 30 of 78
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NumberDatePatenteeTitleType
175,105Mar. 21, 1876A. Rutz, W.A. IvesBit-bracebrace chucks
177,089May 09, 1876E.M. BoyntonBit-stockbrace chucks
RE7,263Aug. 15, 1876W.H. BarberImprovements in Devices for Holding Bits and Other Tools ...brace chucks
195,373Sep. 18, 1877W.A. IvesImprovement in bit-bracesbrace chucks
202,548Apr. 16, 1878W.A. IvesBit-stockbrace chucks
204,727Jun. 11, 1878H.C. HartImprovement in bit-stocksbrace chucks
216,776Jun. 24, 1879Q.S. BackusBit-stock wrenchesbrace chucks
233,464Oct. 19, 1880Q.S. BackusBit-stock
234,517Nov. 16, 1880Q.S. BackusBit-stock
235,380Dec. 14, 1880S.S. RightmyerBit-bracebraces
243,978Jul. 05, 1881G.S. RomingerThree-jaw chuck with self-aligning jaws
248,470Oct. 18, 1881W.A. IvesBit-stockhand drills
265,151Sep. 26, 1882G.S. RomingerThree-jaw chuck with springs to spread the jaws open.
274,041Mar. 13, 1883H.V. SmithBit-stockbraces
274,135Mar. 20, 1883C. MorrillA single coaxial spring uges the jaws apart to receive the bit.
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