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All Patents in class 226/190
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
103,474May 24, 1870V. KnechtImproved pulley-sheaveindustrial machine pulleys and belt drive mechanisms
604,661May 24, 1898H.M. Johnston, G.W. MasonLumber-edgercircular ripsaws
612,958Oct. 25, 1898I. StoneWeb tension device
838,772Dec. 18, 1906D. CraneHolding-down rolls for sawmillssawmills
920,948May 11, 1909J.L. GrahamPress-roll mechanismsawmills
3,180,207Apr. 27, 1965J.F. HerrmannViewing Device for Microfilm Stripmicrofilm viewers
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