US PATENT SUBCLASS 137 / 361
.~.~.~.~ Recessed gas outlet box

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

343  DF  WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS {7}
356  DF  .~ Static constructional installations {3}
357  DF  .~.~ Buildings {4}
360  DF  .~.~.~ Wall {1}
361.~.~.~.~ Recessed gas outlet box

DEFINITION

Classification: 137/361

(under subclass 360) Apparatus in which the support, casing or protector is a covered space in the wall of building used for concealing the outlet of a gas main.