US PATENT SUBCLASS 338 / 281
.~.~ Element includes integral stiffening structure

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338 /   HD   ELECTRICAL RESISTORS

279  DF  RIBBON RESISTANCE ELEMENT BENT OR CURVED ON FLAT SIDE {2}
280  DF  .~ Zigzag or sinuous {1}
281.~.~ Element includes integral stiffening structure

DEFINITION

Classification: 338/281

(under subclass 280) Subject matter wherein the ribbon or strip resistance element includes integral structure, which may be a particular shape such as a rib or channel, to reduce any tendency of the ribbon or strip to bend.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, for a zigzag or sinuous resistor whose element includes integral stiffening structure.

291, for such a resistor which includes a transverse element stiffening or reinforcing rod or strip.

333, for resistors of a particular configuration not classified above.