Heating elements specially adapted for furnaces (H05B3/60 takes precedence; arrangements of elements for electric heating in or on furnaces using ohmic resistance heating F27D11/02)

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Ohmic-resistance heating > Heating elements specially adapted for furnaces (H05B3/60 takes precedence; arrangements of elements for electric heating in or on furnaces using ohmic resistance heating F27D11/02)

Child Classifications

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• H05B 3/64 using ribbon, rod, or wire heater
• H05B 3/66 Supports or mountings for heaters on or in the wall or roof