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Patents for Jay H. Newbury
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	259,903	Jun. 20, 1882	G.A. Chapman, J.H. Newbury	Device for Threading Plugs
	423,729	Mar. 18, 1890	J.H. Newbury, G.A. Chapman	Device for Cutting Screw Threads
	437,713	Oct. 07, 1890	G.A. Chapman, J.H. Newbury	Method of Cutting Screw Threads

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