US PATENT SUBCLASS 425 / 372
.~.~ Including speed differential means

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

363  DF  PRESS FORMING MEANS, PRESS RESHAPING MEANS, OR VULCANIZING MEANS IS ENDLESS SURFACE TYPE {9}
371  DF  .~ Cooperating endless belts {1}
372.~.~ Including speed differential means

DEFINITION

Classification: 425/372

(under subclass 371) Apparatus comprising means to regulate the speed of one band relative to that of the other.