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Spark plug electrode for use in internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent

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Spark plug electrode including a profiled noble-metal part

Electric lamp and discharge devices – Spark plugs – With specific joint structure
Reexamination Certificate

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Spark plug electrode tip for internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
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Spark plug electrodes

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent

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Spark plug element having defined dimensional parameters for...

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Reexamination Certificate

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Spark plug employing both corona discharge and arc discharge and

Electric lamp and discharge devices – Spark plugs – Non-conducting material in or adjacent gap
Patent

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Spark plug for an engine for a cogeneration system

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Plural part insulating means
Patent

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Patent

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Plural part center electrode lead-in
Reexamination Certificate

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Reexamination Certificate

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Reexamination Certificate

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Reexamination Certificate

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Spark plug for an internal combustion engine

Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Patent

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Spark plug for an internal combustion engine and a method of mak

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

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Spark plug for an internal combustion engine and method for...

Electric lamp and discharge devices – Spark plugs – Non-conducting material in or adjacent gap
Reexamination Certificate

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Spark plug for an internal combustion engine and method for...

Electric lamp and discharge devices – Spark plugs
Reexamination Certificate

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Spark plug for an internal combustion engine and process for its

Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
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