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PCE
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CPC Subgroup
H01T 13/24

having movable electrodes (H01T13/28 takes precedence)

Full Title

Sparking plugs > characterised by features of the electrodes or insulation > having movable electrodes (H01T13/28 takes precedence)

1 direct subcode

Child Classifications

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  • H01T 13/26 for adjusting spark gap otherwise than by bending of electrode