All Patents in class 336/229


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All Patents in class 336/229
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
359,205	Mar. 08, 1887	S.S. Wheeler, C.G. Curtis, F.B. Crocker	Armature and Process of and Apparatus for Forming the Same	electric motors
433,702	Aug. 05, 1890	N. Tesla	Electrical transformer or induction device