US PATENT SUBCLASS 166 / 330
.~ Rotated operator

Current as of: June, 1999
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166 /   HD   WELLS

316  DF  VALVES, CLOSURES OR CHANGEABLE RESTRICTORS {5}
330.~ Rotated operator {1}
331  DF  .~.~> Lug in branched slot, e.g., "J" slot

DEFINITION

Classification: 166/330

(under subclass 316) Devices where the valve operator is rotated to open or close the valve.