US PATENT SUBCLASS 204 / 217
.~.~.~.~.~ Mechanical working

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

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
*  DD  .~.~ With movable electrode means {7}
212  DF  .~.~.~ Rotary {3}
215  DF  .~.~.~.~ With base treatment {2}
217.~.~.~.~.~ Mechanical working

DEFINITION

Classification: 204/217

(under subclass 215) Apparatus in which means are included to give the base a mechanical working.