US PATENT SUBCLASS 196 / 118
.~ Liquid baths

Current as of: June, 1999
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196 /   HD   MINERAL OILS: APPARATUS

104  DF  VAPORIZING {22}
118.~ Liquid baths

DEFINITION

Classification: 196/118

(under subclass 104) Mineral-oil vaporizers having therein baths that are liquid, but substantially nonvolatile at the vaporizing temperature employed. Such material may be metal, fusible salts, or heavy hydrocarbons.

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48, Gas: Heating and Illuminating,

92,.