Patent classifications
H
ELECTRICITY
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H05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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H05B
ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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41/00
Circuit arrangements or apparatus for igniting or operating discharge lamps
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H05B41/16
in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC; , or with network frequencies
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