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METHODS AND APPARATUS FOR OPERATING AN INTERNAL COMBUSTION ENGINE

  • US 20090020958A1
  • Filed: 03/31/2006
  • Published: 01/22/2009
  • Est. Priority Date: 03/31/2006
  • Status: Abandoned Application
First Claim
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1. A piston ring assembly for an internal combustion engine comprising a plurality of seal rings positioned on at least a portion of a piston crown periphery.

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