Patents for William H. Laughlin


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Patents for William H. Laughlin
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	129,737	Jul. 23, 1872	W.H. Laughlin	Improvement in Carpenters' Bevels
	178,448	Jun. 06, 1876	W.H. Laughlin	Improvement in Countersinks