Patents for Raymond O. Stetson


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Patents for Raymond O. Stetson
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	794,753	Jul. 18, 1905	R.O. Stetson	Illuminated Spirit-Level
	1,752,112	Mar. 25, 1930	R.O. Stetson, C.D. Severance	Spirit level