All Patents in class 172/36


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All Patents in class 172/36
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	96,332	Nov. 02, 1869	G. Little	Improvement in Electro-Magnetic Motors
	1,652,401	Dec. 13, 1927	F.P. Forss	Air cooling for electric drill