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All Patents in class 417/415
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,187,031Jun. 13, 1916S.D. Black, A.G. DeckerAir-compressor
1,821,216Sep. 01, 1931F.G. Hobart, W.C. HeathPumppumps
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