US PATENT SUBCLASS 73 / 54.12
.~.~.~ Plural fluids (e.g., comparison)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

53.01  DF  LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID {15}
54.01  DF  .~ Viscosity {11}
54.11  DF  .~.~ Orifice, nozzle, or extrusion means {3}
54.12.~.~.~ Plural fluids (e.g., comparison)

DEFINITION

Classification: 73/54.12

Plural fluids (e. g., comparison):

(under subclass 54.11) Subject matter wherein the determination is made by measuring reactions of plural liquids.