CPC Subgroup
H01H 33/6644 Full Title
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid > Vacuum switches > Contacts; Arc-extinguishing means, e.g. arcing rings
1 direct subcode
Child Classifications
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