All Patents in class 55/442


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All Patents in class 55/442
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
711,446	Oct. 14, 1902	E.M. Thacker	Apparatus for Separating Oil	separators
2,384,414	Sep. 04, 1945	C.H. Antrim	Dust collector for grinding and other machines