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All Patents in class 92/250
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,394,488	Feb. 05, 1946	V.G. Klein, L.C. Rotter	Lubricating Apparatus
2,814,540	Nov. 26, 1957	H.I. Southerwick	Piston Packing

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