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Patents for Charles E. Roberts
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	242,046	May 24, 1881	C.E. Roberts	Emery Wheel Dresser
	355,718	Jan. 11, 1887	C.E. Roberts	Machine for Milling Nuts
	602,106	Apr. 12, 1898	C.E. Roberts	Tool for dressing emery-wheels

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