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All Patents in class 239/455
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	213,311	Mar. 18, 1879	E.R. Addison	Variable Exhaust for Locomotives
	1,345,802	Jul. 06, 1920	F.E. Munschauer	Gage for sheet-metal shears, &c.

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