US PATENT SUBCLASS 264 / 635
.~.~ Utilizing core mandrel


Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

603  DF  OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM {30}
632  DF  .~ Producing hollow article (e.g., tube, etc.) {4}
635.~.~ Utilizing core mandrel


DEFINITION

Classification: 264/635

Utilizing core mandrel:

(under subclass 632) Process wherein a shaping means serves as a center around which material is formed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

610, for processes of simultaneously burning, vaporizing, or melting of embedded core to form a nonrandom void.