US PATENT SUBCLASS 123 / 41.56
.~ Air-cooled

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

41.01  DF  COOLING {27}
41.56.~ Air-cooled {7}
41.57  DF  .~.~> With liquid cooling
41.58  DF  .~.~> Flow-regulating means {1}
41.6  DF  .~.~> Steam dividing vanes, baffles, conduits, or the like for multiple cylinders {2}
41.63  DF  .~.~> With impelling means {2}
41.67  DF  .~.~> Jacketed cylinder {1}
41.69  DF  .~.~> Finned cylinder and/or head
41.7  DF  .~.~> Engine encasing air duct; e.g., cowling

DEFINITION

Classification: 123/41.56

(under subclass 41.01) Cooling means wherein the primary

coolant is air or other gaseous fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.19, for nonaqueous vapor coolant.

41.2+, for aqueous vapor coolants.