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All Patents in class 74/469
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,971XJan. 23, 1834T.W. LafetraLever power
755,734Mar. 29, 1904T. BarrowValve Operating Mechanism industrial control apparatus
2,107,074Feb. 01, 1938E.S. HinelineCopy Camera Equipment Unitcameras
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