US PATENT SUBCLASS 425 / 207
.~ Within pressurizing chamber

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

200  DF  WITH SEPARATE AND DISTINCT UPSTREAM AGITATING OR KNEADING MEANS {8}
207.~ Within pressurizing chamber {1}
208  DF  .~.~> By modified screw helix

DEFINITION

Classification: 425/207

(under subclass 200) Apparatus wherein the agitating or kneading means is within a receptacle or housing in which the pressure is increased.