US PATENT SUBCLASS 512 / 25
.~ Oxygen containing active ingredient

Current as of: June, 1999
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512 /   HD   PERFUME COMPOSITIONS

1  DF  PERFUME COMPOSITIONS {8}
25.~ Oxygen containing active ingredient {1}
26  DF  .~.~> The oxygen is part of a carbonyl group {1}

DEFINITION

Classification: 512/25

(under subclass 1) Compositions wherein the active ingredient contains oxygen.