US PATENT SUBCLASS 123 / 41.71
.~ Plural materials


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

41.01  DF  COOLING {27}
41.71.~ Plural materials


DEFINITION

Classification: 123/41.71

(under subclass 41.01) Cylinder, piston or jacket construction in which a plurality of materials, usually of different thermal capacity, are combined in a single element.

(1) Note. A liner or cover permanently attached is considered a combined single element.