4. Internal-combustion engines
  5. Poppet valve operating mechanism
  6. Lubrication

Liyun Zheng

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Engine lubrication system

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

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Engine lubrication system and pressure reducing valve for...

Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate

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Engine shaft pump

Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Reexamination Certificate

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Lubrication system using valves to meet various engine oil...

Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2786342

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