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Patents for Edward H. Hall
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,947,892	Feb. 20, 1934	H.C. Walsh, E.H. Hall	Power press control
	2,051,116	Aug. 18, 1936	H.C. Walsh, E.H. Hall	Power press driving mechanism

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