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

Donald J. Lewis

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Adjusting valve lash for an engine with electrically...

Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate

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Catalyst preconditioning method and system

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
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Catalyst temperature control on an electrically throttled...

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
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Controlling spark for an engine with controllable valves

Internal-combustion engines – High tension ignition system – Responsive to engine or environmental condition
Reexamination Certificate

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Controlling spark for an engine with controllable valves

Internal-combustion engines – High tension ignition system – Responsive to engine or environmental condition
Reexamination Certificate

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