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Patents for Edwin S. Clarkson
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	427,743	May 13, 1890	R.L. Warner, H.B. Smith, W.M. Chamberlain	Improvements in Hub-Wrenches
	446,074	Feb. 10, 1891	C.H. Myers	Attachment for Metal Planers
	D34,017	Jan. 29, 1901	F.O. Farwell	Design for a Casing for Inclinometers
	808,245	Dec. 26, 1905	J. Lund	Wood-Boring Implement
	937,962	Oct. 26, 1909	H.B. Ross	Cutter-head for grooving-machines

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