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Patents for Robert M. Hooper
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	213,648	Mar. 25, 1879	A. Friedmann	Injector
	310,910	Jan. 20, 1885	C. Piquerez	Watch Case Graving Machine
	371,211	Oct. 11, 1887	N. Naudey	Sawing-machine

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