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More topics under "H02 - Generation, conversion, or distribution of electric power" (1,051,019) |
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H02B - Boards, substations, or switching arrangements for the supply or distribution of electric power (49,144) | H02G - Installation of electric cables or lines, or of combined optical and electric cables or lines (94,628) | H02H - Emergency protective circuit arrangements (101,403) | H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy (196,572) | H02K - Dynamo-electric machines (309,745) | H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof (149,894) | H02N - Electric machines not otherwise provided for (38,132) | H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils (111,501) |
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