All Patents in class 362/261


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All Patents in class 362/261
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	280,426	Jul. 03, 1883	W. Wheeler	Focus Regulator for Electric Arc Lamps
	685,426	Oct. 29, 1901	J.A. Mosher	Electric Arc Lamp