All Patents in class 505/856


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All Patents in class 505/856
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	655,838	Aug. 14, 1900	N. Tesla	Method of insulating electrical conductors
	685,012	Oct. 22, 1901	N. Tesla	Means for Increasing the Intensity of Electrical Oscillations