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This page displays all 「FI」 in main group H01T21/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs | HB | CC | 5G059 | |
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.of sparking plugs | HB | CC | 5G059 | |
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..Cleaning (means for self-cleaning H01T 13/14; abrasive blasting devices for cleaning sparking plugs B24C 3/34) | HB | CC | 5G059 | |
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.Adjustment of spark gaps (sparking plugs having movable electrodes for adjusting the gap H01T 13/26) [4] | HB | CC | 5G059 | |