US PATENT SUBCLASS 512 / 9
.~.~ Spiro

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

1  DF  PERFUME COMPOSITIONS {8}
8  DF  .~ Ring containing active ingredient {6}
9.~.~ Spiro

DEFINITION

Classification: 512/9

(under subclass 8) Compositions in which the ring in the

active ingredient is part of a spiro ring system, i.e., exactly two rings share one common ring member only.