US PATENT SUBCLASS 291 / 42
.~ Cleaners

Current as of: June, 1999
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291 /   HD   TRACK SANDERS

41  DF  SAND-DELIVERY PIPE {4}
42.~ Cleaners {1}
43  DF  .~.~> Fluid

DEFINITION

Classification: 291/42

Movable devices inside the sand-pipes for cleaning them.

SEE OR SEARCH CLASS

222, Dispensing,

148+, for other dispensers combined with a cleaner.