US PATENT SUBCLASS 303 / 83
.~.~ To chamber

Current as of: June, 1999
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303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

*  DD  RELEASING {3}
81  DF  .~ Control pipe {2}
83.~.~ To chamber

DEFINITION

Classification: 303/83

Fluid is released from the brake-pipe into a chamber.

(1) Note. This is comparable to the action of the equalizing-valves in this class, subclass 39.