US PATENT SUBCLASS 210 / 740
.~.~ Density or specific gravity sensing

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
739  DF  .~ Including controlling process in response to a sensed condition {7}
740.~.~ Density or specific gravity sensing

DEFINITION

Classification: 210/740

Density or specific gravity sensing:

(under subclass 739) Process in which the mass per unit volume (either actual or relative to that of water) is determined by the sensing means.