US PATENT SUBCLASS 123 / 41.54
.~ With vent

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

41.01  DF  COOLING {27}
41.54.~ With vent

DEFINITION

Classification: 123/41.54

(under subclass 41.01) Cooling systems having means for venting air or vapor to the atmosphere.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.27, for overflow type vents delivering fluid into a tank or condenser.