US PATENT SUBCLASS 165 / DIG 324
.~.~.~ Agitator having blade sections mounted along rotating shaft

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

DIG 318  DD  WITH DRIVEN AGITATOR {2}
DIG 320  DD  .~ Fully rotary agitator {4}
DIG 322  DD  .~.~ Including heat exchange jacket-walls {2}
DIG 324.~.~.~ Agitator having blade sections mounted along rotating shaft