US PATENT SUBCLASS 123 / 287
.~.~ With ignition means in connecting passage

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

253  DF  PRECOMBUSTION AND MAIN COMBUSTION CHAMBERS IN SERIES {22}
286  DF  .~ Having specific connecting passage means between precombustion and main combustion chambers {5}
287.~.~ With ignition means in connecting passage

DEFINITION

Classification: 123/287

With ignition means in connecting passage:

(under subclass 286) Subject matter wherein combustion initiating means is employed in the connecting passage.