All Patents in class 417/28


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All Patents in class 417/28
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	12,723	Apr. 17, 1855	D. Fowler	Machine for Punching Metal
	2,378,883	Jun. 19, 1945	P.S. Russel	Control Device
	2,380,226	Jul. 10, 1945	J.R. Frantz	Automatic Compressor Regulator