US PATENT SUBCLASS 4 / 533
.~ Conversion means

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

524  DF  VAPOR OR HEAT IN BATH (E.G., SAUNA, STEAM BATH, OR SUDATORIUM) {3}
533.~ Conversion means {1}
534  DF  .~.~> Flexible covering

DEFINITION

Classification: 4/533

Conversion means:

(under subclass 524) Subject matter including additional means to change a bath receptacle into an enclosure.