Patents for Yerkes & Plumb


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Patents for Yerkes & Plumb
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	142,070	Aug. 19, 1873	J. Yerkes	Improvement in the Manufacture of Hammers
	150,385	Apr. 28, 1874	J. Yerkes	Improvement in wedges for tool-handles