US PATENT SUBCLASS 119 / 259
.~.~ Filter

Current as of: June, 1999
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119 /   HD   ANIMAL HUSBANDRY

200  DF  AQUATIC ANIMAL CULTURING {5}
245  DF  .~ Aquarium {13}
259.~.~ Filter {2}
260  DF  .~.~.~> Biological type
261  DF  .~.~.~> With aerator {1}

DEFINITION

Classification: 119/259

Filter:

(under subclass 245) Subject matter including means cooperating with the aquarium structure to cause recirculation of the contained water while removing contaminants therefrom as it passes through a media holding device.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, appropriate subclasses, especially

169, for a filter meant for aquarium installation.