US PATENT SUBCLASS 164 / 372
.~.~ Vented

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

271  DF  MEANS TO SHAPE METALLIC MATERIAL {12}
371  DF  .~ Chill, shaping type {2}
372.~.~ Vented

DEFINITION

Classification: 164/372

(under subclass 371) Apparatus wherein the chill has openings in its surface to allow gas to escape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410, for vent or vent forming apparatus.