4. Internal-combustion engines
  5. Four-cycle
  6. Rotating valve

Byung Ok Park

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Continuously variable valve actuation system

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate

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Intake and exhaust device equipped with first and second...

Internal-combustion engines – Four-cycle – Rotating valve
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3240434

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