US PATENT SUBCLASS 303 / 50
MOTORMAN'S VALVES

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

50MOTORMAN'S VALVES {4}
51  DF  .~> Conductor type
52  DF  .~> Multiple motors {1}
54  DF  .~> Equalizing {1}
56  DF  .~> Details

DEFINITION

Classification: 303/50

Valves operated directly by a the motorman adapted to connect the source of fluid-supply to the motor.