US PATENT SUBCLASS 252 / 517
.~ Radioactive material containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

500  DF  ELECTRICALLY CONDUCTIVE OR EMISSIVE COMPOSITIONS {6}
517.~ Radioactive material containing

DEFINITION

Classification: 252/517

(under subclass 500) Compositions which contain a radio-active material.

(1) Note. Compounds of radium, uranium and thorium, for example, are included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

505, for conductive or emissive compositions containing elemental carbon and a radio-active material.