4. Internal-combustion engines
  5. Engine speed regulator
  6. Specific throttle valve structure

Yong Yun Hwang

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Exhaust gas recirculation system of vehicle

Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate

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Impulse charger for motor vehicle engines

Internal-combustion engines – Engine speed regulator – Specific throttle valve structure
Reexamination Certificate

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