4. Electric lamp and discharge devices
  5. Spark plugs
  6. Plural parallel gaps

Gruber Friedrich

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Spark ignition internal combustion engine

Internal-combustion engines – Particular piston and enclosing cylinder construction – Piston
Reexamination Certificate

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Spark plug with central electrode attachment member containing p

Electric lamp and discharge devices – Spark plugs – Plural parallel gaps
Patent

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Profile ID: LFUS-PAI-P-1558354

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