US PATENT SUBCLASS 204 / 240
.~.~.~ With filter

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
232  DF  .~.~ Cells with electrolyte treatment means {4}
240.~.~.~ With filter

DEFINITION

Classification: 204/240

(under subclass 232) Apparatus in which the additional electrolyte treatment means includes a filter.

(1) Note. Search also this class, subclasses 235 and 238.

(2) Note. For electrolytic cells having filter means, see this class, subclasses 249, 264 and 276.