US PATENT SUBCLASS 123 / 190.3
.~.~ For crankcase

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

188.1  DF  VALVE {10}
190.1  DF  .~ Rotary {7}
190.3.~.~ For crankcase

DEFINITION

Classification: 123/190.3

For crankcase:

(under subclass 190.1) Apparatus wherein fuel and combustion products enter or leave the crankcase through a rotary valve.