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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H05B2203/022
Heaters specially adapted for heating gaseous material
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H05B2203/023
Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system
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