US PATENT SUBCLASS 123 / 337
.~ Specific throttle valve structure

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

319  DF  ENGINE SPEED REGULATOR {16}
337.~ Specific throttle valve structure

DEFINITION

Classification: 123/337

Specific throttle valve structure:

(under subclass 319) Subject matter wherein the carburetor or engine intake has a unique butterfly configuration that is significant to its operation as a speed regulating device.