4. Internal-combustion engines
  5. Poppet valve operating mechanism
  6. With means for varying timing

Ronald J. Herrin

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Cylinder bank work output balancing based on exhaust gas A/F...

Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Reexamination Certificate

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Engine with variable valve overlap

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

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Hydraulic valve lifter

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

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Method for balancing engine cylinder bank output using...

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

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