US PATENT SUBCLASS 239 / 74
.~ With spray material quantity or flow indicating means (e.g., sight gauge)

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

71  DF  WITH SIGNALS, INDICATORS, RECORDERS, METERS OR CHANGEABLE EXHIBITORS {3}
74.~ With spray material quantity or flow indicating means (e.g., sight gauge)

DEFINITION

Classification: 239/74

(under subclass 71) Apparatus having means giving information as to amount or quantity or showing by inspection that material is flowing in the system.

SEE OR SEARCH CLASS

222, Dispensing,

154+, for dispensers having inspection devices and subclasses 71+ for volume or rate of flow metering means.