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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5/00
Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
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F23C5/32
to obtain rotating flames, i.e. flames moving helically or spirally
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