US PATENT SUBCLASS 336 / 229
.~ Toroidal

Current as of: June, 1999
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336 /   HD   INDUCTOR DEVICES

225  DF  COILS OF SPECIAL CONFIGURATION {7}
229.~ Toroidal

DEFINITION

Classification: 336/229

(under subclass 225) Subject matter wherein the coil axis describes a closed curve (e.g., a circle).