Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02J
ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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3/00
Circuit arrangements for AC mains or AC distribution networks
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H02J3/007
Arrangements for selectively connecting one or more loads to one or more power sources or power lines
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H02J3/0073
by providing alternative feeding paths when the main path fails
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