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H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
CH310617D1942-11-271943-11-11
Single pole disconnector in a high voltage switchgear.
CH310617A
(en)