US PATENT SUBCLASS 266 / 278
.~.~ Having corrugated wall

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

274  DF  MEANS FOR HOLDING OR SUPPORTING WORK {2}
275  DF  .~ Receptacle {2}
278.~.~ Having corrugated wall

DEFINITION

Classification: 266/278

(under subclass 275) Device wherein a wall of the container is formed with a plurality of alternating ribs and grooves which give an undulating appearance to the wall.