US PATENT SUBCLASS 204 / 270
.~.~.~.~.~ Gas

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
242  DF  .~.~ Cells {10}
267  DF  .~.~.~ Plural cells {2}
269  DF  .~.~.~.~ With feeding and/or withdrawal means {1}
270.~.~.~.~.~ Gas

DEFINITION

Classification: 204/270

(under subclass 269) Electrolytic cells in which material fed or withdrawn is a gas.

(1) Note. For other cells with gas feeding or withdrawal means, see this class, subclasses 246, 247, 256, 258, 265, 266, 277, and 278.