US PATENT SUBCLASS 338 / 88
.~.~ Powdered element

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
87  DF  .~ Contact adjustably inserted into resistance element (e.g., penetrating type) {1}
88.~.~ Powdered element

DEFINITION

Classification: 338/88

(under subclass 87) Subject matter wherein the resistance element is granular or powdered, the contact usually being formed as a pin or other elongated object to penetrate into the powdered or granular element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100, for compressible type granular resistors.

223+, for resistors generally with granular or powdered elements.