US PATENT SUBCLASS 239 / 35
.~ With empty or refill signal or indicator

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

34  DF  SLOW DIFFUSERS {9}
35.~ With empty or refill signal or indicator

DEFINITION

Classification: 239/35

(under subclass 34) Apparatus having a device to make known by visual, audible or other means that the material holder is empty or needs replenishing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71+, for other signals, indicators, and changeable exhibitors.

SEE OR SEARCH CLASS

116, Signals and Indicators,

109+, and 227+ for the signal or indicator, per se.