US PATENT SUBCLASS 123 / 309
.~ Specific spark plug location

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

306  DF  MEANS TO WHIRL FLUID BEFORE, UPON, OR AFTER ENTRY INTO COMBUSTION CHAMBER {3}
309.~ Specific spark plug location

DEFINITION

Classification: 123/309

Specific spark plug location:

(under subclass 306) Subject matter wherein significance is attributed to the specific location of the spark plug with respect to the whirling fluid.