US PATENT SUBCLASS 512 / 26
.~.~ The oxygen is part of a carbonyl group

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

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

DEFINITION

Classification: 512/26

(under subclass 25) Compositions wherein the oxygen is part of a carbonyl group.