US PATENT SUBCLASS 123 / 315
.~ Multiple exhaust

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

311  DF  FOUR-CYCLE {19}
315.~ Multiple exhaust

DEFINITION

Classification: 123/315

Multiple exhaust:

(under subclass 311) Subject matter wherein said exhaust means comprises a plurality of exhaust apertures.