Patents for John S. Birch and Company


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Patents for John S. Birch and Company
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	88,836	Apr. 13, 1869	J.S. Birch	Improvement in Self-Adjusting Watch-Keys
	282,605	Aug. 07, 1883	J.S. Birch	Watch Key and Holding Tool