Patents for John F. Crean


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Patents for John F. Crean
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,122,633	Dec. 29, 1914	E.S. Pillsbury	Dynamo-electric machine
	1,130,017	Mar. 02, 1915	E.S. Pullsbury	Centrifugal circuit-changing device for electric motors