US PATENT SUBCLASS 239 / 55
.~.~ With enclosing casing

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

34  DF  SLOW DIFFUSERS {9}
53  DF  .~ Liquid supply in absorbent or porous media only {2}
55.~.~ With enclosing casing {1}
56  DF  .~.~.~> Pad type

DEFINITION

Classification: 239/55

(under subclass 53) Apparatus in which the liquid material retaining element is surrounded or substantially surrounded by a housing, there being spaces permitting the vaporized liquid to be disseminated into the ambient atmosphere.