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All Patents in class 254/103
Patents 1 - 11 of 11
First set of recordsLast set of records
5,374XFeb. 16, 1829T. EvansJack screws for stowing goods in ships' holdsnautical jack screws
452,991May 26, 1891A.L. ColburnSpindle feed for drill pressdrill presses
878,522Feb. 11, 1908F.L. GormleyLifting Jackjack screws
1,052,921Feb. 11, 1913I.E. HindmanLifting-jack
1,054,413Feb. 25, 1913I.E. HindmanLifting-jackautomobile mechanic
1,089,703Mar. 10, 1914I.E. HindmanFriction clutch for screw-jacksindustrial machine clutches
1,228,210May 29, 1917I.E. HindmanScrew-jackautomobile mechanic
1,234,334Jul. 24, 1917I.E. HindmanBrake mechanism for lifting-jacksautomobile mechanic
1,343,732Jun. 15, 1920G.O. LeopoldLifting jack
1,395,340Nov. 01, 1921F.L. GormleySpeed Retarding Device for Lifting Jackslifting tools
1,395,341Nov. 01, 1921F.L. GormleySelf Lowering Jacklifting tools
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