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All Patents in class 474/37
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,842,194Jan. 19, 1932V.H. PetersonVariable speed mechanism for drillsdrill presses
2,032,015Feb. 25, 1936D.H. HeynauFriction gear transmissionindustrial machine speed and direction changing mechanisms
2,199,491May 07, 1940D.H. HeynauFriction gear transmissionindustrial machine speed and direction changing mechanisms
2,475,954Jul. 12, 1949W.E. GerbingVariable speed pulleyindustrial machine pulleys and belt drive mechanisms
2,475,955Jul. 12, 1949W.E. GerbingVariable pitch pulleyindustrial machine pulleys and belt drive mechanisms
2,893,253Jul. 07, 1959P.K. BeemerVariable pitch pulley mechanismindustrial machine pulleys and belt drive mechanisms
2,927,612Mar. 08, 1960J.W. Edgemond, Jr., H. GoldschmidtCombination wood-working machinetablesaws
3,009,294Nov. 21, 1961T.J. Lindem, J. van RoojenGrinder with wheel dressertool grinders
3,049,932Aug. 21, 1962S.C. StrausVariable Pitch Driving Systemmetalworking machine mechanisms
3,154,959Nov. 03, 1964B.N. PalmVariable speed driveindustrial machine pulleys and belt drive mechanisms
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