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Patents for John P. Hill
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,778,924	Jan. 22, 1957	J.P. Hill	Apparatus and method for producing flat surfaces
	2,797,299	Jun. 25, 1957	J.P. Hill	Method of forming serrations at the back of the blade of cutting elements

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