US PATENT SUBCLASS 119 / 261
.~.~.~ With aerator

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

200  DF  AQUATIC ANIMAL CULTURING {5}
245  DF  .~ Aquarium {13}
259  DF  .~.~ Filter {2}
261.~.~.~ With aerator {1}
262  DF  .~.~.~.~> And heat exchanger

DEFINITION

Classification: 119/261

With aerator:

(under subclass 259) Subject matter including means to provide oxygen enrichment to water in the aquarium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263, for an aquarium aerator, per se.