US PATENT SUBCLASS 165 / 92
.~ Hollow strirrer or scraper

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

86  DF  MOVABLE HEATING OR COOLING SURFACE {4}
92.~ Hollow strirrer or scraper {1}
93  DF  .~.~> Material advancer in shelf to shelf device

DEFINITION

Classification: 165/92

(under subclass 86) Apparatus in which the movable heat exchange surface passes through a body of fluent material to give movement to parts of the body relative to other parts of the body or its container.

SEE OR SEARCH CLASS

366, Agitating,

147, for heat exchange medium in stirrer of agitator.