Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
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F23C
METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN; A CARRIER GAS OR; AIR
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7/00
Combustion apparatus characterised by arrangements for air supply
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F23C7/02
Disposition of air supply not passing through burner
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F23C7/06
for heating the incoming air
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