US PATENT SUBCLASS 137 / 350
.~.~.~ Roof, wall or floor

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

343  DF  WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS {7}
899  DF  .~ Vehicle {8}
347  DF  .~.~ Railway car {3}
350.~.~.~ Roof, wall or floor

DEFINITION

Classification: 137/350

(under subclass 347) Apparatus in which the support, casing or protector is the roof, wall or floor of a railroad car.

SEE OR SEARCH THIS CLASS, SUBCLASS:

247.11+, especially subclasses 247.33, 247.35, 247.37, and 247.39 for liquid sealed refrigeration car drain installations.

354, for fluid handling devices installed in the floor of a vehicle.

360+, and 362, for fluid handling devices installed in the wall or floor of a building.