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Patents for Pearl H. Robinson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	810,307	Jan. 16, 1906	P.H. Robinson	Tool-holder
	878,672	Feb. 11, 1908	P.H. Robinson	Tool Holder
	1,056,089	Mar. 18, 1913	P.H. Robinson, G.W. Conklin	Tool-holder

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