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All Patents in class 187/346
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	230,514	Jul. 27, 1880	A.A. Wilder	Safety-governor for elevators, &c.
	248,539	Oct. 18, 1881	A.A. Wilder	Safety attachment and governor for elevators

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