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All Patents in class 74/44
Patents 1 - 15 of 37
First set of recordsNext set of recordsLast set of records
7,919XDec. 31, 1833I. BrewsterChurnchurns
6,073Jan. 23, 1849S. Jack, IICombined Spring Rock-Drilling Machinestone boring and drilling machines
68,740Sep. 10, 1867T.B. HarrisonPower Hammerpower hammers
78,443Jun. 02, 1868A.R. EhlersImprovement in sawmillsreciprocating sawmills
129,996Jul. 30, 1872L. SwensonImprovement in Crank-Expanderssteam engine crank rods
131,236Sep. 10, 1872E. WallaceImprovement in mortising-machines
139,233May 27, 1873I. BrownImprovement in reciprocating steam-engines and saw-mills combinedcircular sawmills
184,419Nov. 14, 1876G.A. OhlMetal-Shaping Machinemetal shapers
190,441May 08, 1877W.J. LiddellImprovement in steam-enginessteam engines
226,972Apr. 27, 1880E. BussGas-Enginegas and gasoline engines
252,111Jan. 10, 1882C.E. McBeth, J.M. LongPunching-machine
352,269Nov. 09, 1886B.F. ShinnFire-wood drag-sawdrag saws
358,431Mar. 01, 1887D.E. ConnerDevice for Transmitting Motion
379,340Mar. 13, 1888H. St. LawrencePower-hammerdrop hammers
394,484Dec. 11, 1888G. GlossopPneumatic hammerdrop hammers
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