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All Patents in class 280/11
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
12,850May 15, 1855D. Thompson, A. Thompson, D.S. BarberSleighsleighs
1,591,539Jul. 06, 1926A. LevedahlCrank-case venting means for pneumatic tools
2,090,324Aug. 17, 1937J. BoisvertRoad grader attachmentgraders and dozers
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