US PATENT SUBCLASS 324 / 554
.~.~.~ Sheet material

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

500  DF  FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS {10}
537  DF  .~ Of individual circuit component or element {17}
551  DF  .~.~ Insulation {3}
554.~.~.~ Sheet material

DEFINITION

Classification: 324/554

Sheet material:

(under subclass 551) Subject matter where sheets of insulating material used for electric circuits and in electric components are tested for insulation qualities.

SEE OR SEARCH THIS CLASS, SUBCLASS:

548, for capacitor which use insulating sheet material as a dielectric.

557+, for testing qualities of insulating materials in general.