US PATENT SUBCLASS 34 / 437
.~ Treating hollow article

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

282  DF  PROCESS {24}
437.~ Treating hollow article {3}
438  DF  .~.~> Having conveyor
439  DF  .~.~> Treating fluid directed to interior and exterior of hollow article
440  DF  .~.~> With specific support for hollow article {1}

DEFINITION

Classification: 34/437

Treating hollow article:

(under subclass 282) Process wherein the treated article has an empty space in its interior.