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Patents for G. L. Chapin
Patents 1 - 15 of 26
First set of recordsNext set of recordsLast set of records
81,967Sep. 08, 1868J.S. WilliamsImprovement in double ratchet-lever powerwoodworking machine mechanisms
82,351Sep. 22, 1868C. RobinsonImprovement in miter-boxesmiter boxes
91,387Jun. 15, 1869A. VaughanImproved post auger
107,861Oct. 04, 1870W. BowmanImprovement in circular-saw mills
108,326Oct. 18, 1870J. Hay, J.C. ButterfieldImprovement in trip-hammersdrop hammers
137,284Apr. 01, 1873E. BenjaminImprovement in sawing-machinesclapboard machines
142,669Sep. 09, 1873E. BenjaminImprovement in cutter-headscutterheads
145,304Dec. 09, 1873W.F. MoodyImprovement in rotary steam-enginessteam engines
148,840Mar. 24, 1874W.F. MoodyImprovement in dovetailing machinesdovetailing machines
150,524May 05, 1874J.C. ButterfieldImprovement in plow-beamsplows
163,277May 11, 1875G.H. StrongPincherscombination tools
173,439Feb. 15, 1876E. BenjaminImprovement in cutter-heads for planing-machinescutterheads
177,922May 30, 1876J.P. BurnhamImprovement in pressure-rolls for wood-planing machineswood planers
182,782Oct. 03, 1876H.M. WilcoxImprovement in wood-planing machineswood planers
196,327Oct. 23, 1877E. BenjaminImprovement in machines for planing woodwood planers
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