US PATENT SUBCLASS 123 / 188.7
.~ Combustion improving accessory

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

188.1  DF  VALVE {10}
188.7.~ Combustion improving accessory

DEFINITION

Classification: 123/188.7

Combustion improving accessory:

(under subclass 188.1) Apparatus having adjuncts for the valve (e.g., vanes) for enhancing the combustion process.