LandOfFree - US Patents - Listing for Electric lamp and discharge devices,Spark plugs

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Large discharge-volume, silent discharge spark plug

Electric lamp and discharge devices – Spark plugs – Electrodes are pure figures of revolution about plug axis

Patent

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Lateral electrode type spark plug with geometrical relationships

Electric lamp and discharge devices – Spark plugs – Electrodes are pure figures of revolution about plug axis

Patent

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Lean burn spark plug

Electric lamp and discharge devices – Spark plugs – Ring or disk electrode

Patent

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Long distance discharge gap type spark plug

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

Patent

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Long life spark plug having consumable discharge member

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

Patent

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Long life spark plug having minimum noble metal amount

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

Patent

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Low cost spark plug manufactured from conductive loaded...

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

Reexamination Certificate

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Low cost spark plug manufactured from conductive loaded...

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

Reexamination Certificate

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Low radio interference spark plug

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

Patent

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Low-voltage type igniter plug having a semiconductor for use in

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

Patent

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Low-voltage type igniter plug having semi-conductor structure fo

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

Patent

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