Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
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9/00
Details of switching devices, not covered by groups H01H1/00 - H01H7/00
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H01H9/30
Means for extinguishing or preventing arc between current-carrying parts
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H01H9/40
Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
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