US PATENT SUBCLASS 425 / 507
.~.~ Means to modify temperature of work or product

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

500  DF  PREFORM ASSEMBLY MEANS AND MEANS FOR BONDING OF PLURAL PREFORMS INVOLVING PREFORM RESHAPING OR VULCANIZING {8}
506  DF  .~ With treatment means other than assembling, bonding, shaping or reshaping means {2}
507.~.~ Means to modify temperature of work or product {1}
508  DF  .~.~.~> Heating {1}

DEFINITION

Classification: 425/507

(under subclass 506) Apparatus including means to effect a change in the temperature of at least one of the preforms before, during or after the bonding operation.