US PATENT SUBCLASS 33 / 785
.~.~ Fluid indicator

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
783  DF  .~ Opposed contacts {10}
785.~.~ Fluid indicator {1}
786  DF  .~.~.~> Liquid column indicator

DEFINITION

Classification: 33/785

Fluid indicator:

(under subclass 783) Subject matter wherein the indicator is moved by fluid pressure or fluid is the indicator.