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All Patents in class 33/333
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
168,933Oct. 19, 1875H. StanleyImprovement in handles for boring toolsbrace handles
420,242Jan. 28, 1890C.E. NielsenPlumb Levelinclinometers
426,696Apr. 29, 1890W.M. WashburnFarmer's Levelclinometers
1,130,552Mar. 02, 1915E.A. TrenholmSpirit Level
1,533,975Apr. 14, 1925C.A. DeneGauge or leveling device for electric or other drillshandheld power tool accessories
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