US PATENT SUBCLASS 252 / 571
.~ Gaseous or gas-containing


Current as of: June, 1999
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252 /   HD   COMPOSITIONS

570  DF  FLUENT DIELECTRIC {7}
571.~ Gaseous or gas-containing


DEFINITION

Classification: 252/571

Gaseous or gas-containing:

(under subclass 570) Subject matter wherein the composition is one which has a volume the size of the container which holds it or is a liquid containing a defined gaseous component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

372, for miscellaneous gaseous compositions.

SEE OR SEARCH CLASS

48, Gas: Heating and Illuminating, appropriate subclasses for gaseous compositions set forth for such uses.

585, Chemistry of Hydrocarbon Compounds,

6, for gaseous compositions comprising hydrocarbons only.