All Patents in class 415/227


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All Patents in class 415/227
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	17,426	Jun. 02, 1857	R. Daniels	Water-wheel
	2,741,992	Apr. 17, 1956	R.C. Glazebrook	Bladeless Impeller Balance Means