US PATENT SUBCLASS 137 / 625.19
.~.~.~ Rotary plug

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

561 R  DF  SYSTEMS {32}
625  DF  .~ Multi-way valve unit {12}
625.18  DF  .~.~ Plural noncommunicating flow paths {1}
625.19.~.~.~ Rotary plug

DEFINITION

Classification: 137/625.19

(under subclass 625.18) Devices wherein the valve unit is of the rotary type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

587+, for tank systems where one passage is a vent.