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All Patents in class 277/526
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	121,985	Dec. 19, 1871	H. Bolthoff	Improvement in stamp-guides
	473,554	Apr. 26, 1892	E.P. Holly	Valve-Packing Device
	846,746	Mar. 12, 1907	C.V. Kerr	Combined Bushing for Shafts of Steam Engines

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