US PATENT SUBCLASS 119 / 268
.~.~ Chemical treatment

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

200  DF  AQUATIC ANIMAL CULTURING {5}
245  DF  .~ Aquarium {13}
268.~.~ Chemical treatment

DEFINITION

Classification: 119/268

Chemical treatment:

(under subclass 245) Subject matter wherein selective chemical substances are utilized to alter certain properties of the aquarium water and environment.