SE111199C1SE48642ASE48642ASE111199C1SE 111199 C1SE111199 C1SE 111199C1SE 48642 ASE48642 ASE 48642ASE 48642 ASE48642 ASE 48642ASE 111199 C1SE111199 C1SE 111199C1
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SE48642A
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Priority to SE48642ApriorityCriticalpatent/SE111199C1/xx
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F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERALÂ ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuelÂ