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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2203/00
Aspects relating to Ohmic resistive heating covered by group H05B3/00
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H05B2203/012
Heaters using non- flexible resistive rods or tubes not provided for in H05B3/42
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