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Patents for H. S. Sprague
Patents 16 - 30 of 99
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NumberDatePatenteeTitleType
136,807Mar. 18, 1873H. BalcomImprovement in machines for pointing picketsstick pointing machines
136,886Mar. 18, 1873A.A. WilderImprovement in dummy or traction engines
138,270Apr. 29, 1873J.C. MooreImprovement in log-turnerssawmill log handling
138,505May 06, 1873T.J. Frazier, C. LambImprovement in machines for trimming lumbersawmills
140,136Jun. 24, 1873N.J. Holt, J. LeachImprovement in clampsclamps
142,731Sep. 09, 1873E.G. RichardsImprovement in cutter-heads for planing-machinescutterheads
142,733Sep. 09, 1873H.C. RosinImprovement in circular-saw tablestablesaws
148,316Mar. 10, 1874G.C. MillerImprovement in Try-Squares and Bevelsbevels
149,052Mar. 31, 1874G.C. MillerImprovement in Dividersdividers
150,534May 05, 1874T. CraneyImprovement in saw-mill dogssawmill dogs
156,193Oct. 20, 1874J.B. WayneImprovement in saw-millsreciprocating sawmills
157,168Nov. 24, 1874J.A. FordonImprovement in saw-mill dogssawmill dogs
162,356Apr. 20, 1875T. DoyleImprovement in saw-filing machinessaw sharpening machines
165,555Jul. 13, 1875H. FowlerImprovement in machines for cutting hoopshoop making machines
RE6,777Nov. 30, 1875G.H. ShearerImprovement in log-turners for saw-millsawmills
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