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All Patents in class 92/193
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	78,911	Jun. 16, 1868	J.U. Adams	Piston Packing
	133,054	Nov. 12, 1872	G.W. Reisinger	Improvement in piston-packing
	434,657	Aug. 19, 1890	A. Cunningham	Direct-Acting Steam-Feed Works for Saw-Mills
	1,255,081	Jan. 29, 1918	G.L. Cowan	Piston
	3,150,569	Sep. 29, 1964	L.A. Attermeyer	Piston Mechanism

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