US PATENT SUBCLASS 62 / 229
.~.~.~ By external cooled gas

Current as of: June, 1999
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62 /   HD   REFRIGERATION

132  DF  AUTOMATIC CONTROL {19}
190  DF  .~ Refrigeration producer {12}
228.1  DF  .~.~ Compressor or its drive controlled {6}
229.~.~.~ By external cooled gas

DEFINITION

Classification: 62/229

(under subclass 228) Apparatus responsive to a condition of an external cooled ambient gas.