US PATENT SUBCLASS 239 / 43
.~.~ To porous distributor exposed to atmosphere

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

34  DF  SLOW DIFFUSERS {9}
37  DF  .~ Gravity flow of liquid from supply holder {3}
43.~.~ To porous distributor exposed to atmosphere

DEFINITION

Classification: 239/43

(under subclass 37) Apparatus in which the liquid is discharged from the liquid receptacle to a foraminous or liquid permeable element exposed to the ambient atmosphere.