US PATENT SUBCLASS 68 / 226
.~.~ Rubbing surfaces

Current as of: June, 1999
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68 /   HD   TEXTILES: FLUID TREATING APPARATUS

213  DF  IMPLEMENTS {6}
223  DF  .~ Washboards {3}
226.~.~ Rubbing surfaces {4}
227  DF  .~.~.~> Brush type
228  DF  .~.~.~> Sheet or slab {1}
230  DF  .~.~.~> Of slats, bars, or tubes
231  DF  .~.~.~> Of rollers

DEFINITION

Classification: 68/226

Washboards with special scrubbing surfaces.