US PATENT SUBCLASS 62 / 170
.~.~ Evacuating means, e.g., jet pump

Current as of: June, 1999
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62 /   HD   REFRIGERATION

132  DF  AUTOMATIC CONTROL {19}
169  DF  .~ Vacuumized chamber with open outlet {1}
170.~.~ Evacuating means, e.g., jet pump

DEFINITION

Classification: 62/170

(under subclass 169) Apparatus in which the sensing means controls, or responds to, the operation of the evacuating means.