US PATENT SUBCLASS 137 / 624.12
.~.~ With independent valve controller

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

561 R  DF  SYSTEMS {32}
624.11  DF  .~ Programmer or timer {5}
624.12.~.~ With independent valve controller

DEFINITION

Classification: 137/624.12

(under subclass 624.11) Subject matter with means utilized for valve control independent of the programmer or timer.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

289, for a valve actuatable from any of a plurality of positions.