Patents for D. June & Co.


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Patents for D. June & Co.
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	167,738	Sep. 14, 1875	O.S. French, D. June, R. Brayton	Spark-Arrester
	190,275	Mar. 03, 1877	O.S. French, D. June, R. Brayton	Improvement in Spark-Arresters