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All Patents in class 277/525
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	359,869	Mar. 22, 1887	R. Ruddy, L. Kaczander	Stuffing Box for Steam Engines
	407,533	Jul. 23, 1889	F.G. Kellogg	Piston Rod Packing

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