Patents for James Harper


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Patents for James Harper
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	119,269	Sep. 26, 1871	J. Harper	Improvement in Lubricators for Steam Engines
	121,779	Dec. 12, 1871	J. Harper	Improvement in Lubricators for Steam-Engines
	755,518	Mar. 22, 1904	G. Moore	Wrench