US PATENT SUBCLASS 137 / 556
.~.~ Indicator element rigidly carried by the movable element whose position is indicated

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

551  DF  WITH INDICATOR, REGISTER, RECORDER, ALARM OR INSPECTION MEANS {6}
553  DF  .~ Position or extent of motion indicator {3}
556.~.~ Indicator element rigidly carried by the movable element whose position is indicated {1}
556.3  DF  .~.~.~> Movable indicator element is a pointer {1}

DEFINITION

Classification: 137/556

(under subclass 553) Apparatus in which an element of the indicator is an integral part of, or is rigidly carried by, the movable or adjustable part.

SEE OR SEARCH CLASS

222, Dispensing,

47+, for similar indicators in dispensers.