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DK5647C
(en)
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Device for Regulating the Access of the Secondary Air to Smoke Burning Fireplaces.
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DK5392C
(en)
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Smoke Burning Fireplace.
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DK10487C
(en)
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Device by Steam Boiler Boiler for Regulating the Supply of Secondary Combustion Air.
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DK6168C
(en)
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Smoke combustion device.
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FR348540A
(en)
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Chimney ventilation device
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FR347638A
(en)
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Instant sterilizer by the smoke of burnt sulfur
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DK7783C
(en)
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Device for steam boilers for achieving smoke combustion and fuel saving.
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FR346839A
(en)
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Fire lighters
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DK6992C
(en)
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Device for gas burners.
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FR344285A
(en)
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Draft and combustion regulator
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DK11058C
(en)
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Device for fire extinguishers for wick burners.
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CH41535A
(en)
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Device on boiler firing systems to hold back the combustion air from part of the grate
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CH30686A
(en)
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Chimney top
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CH31413A
(en)
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Chimney top
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CH29672A
(en)
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Chimney attachment
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DK8686C
(en)
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Boiler room for Fireplaces with Re-ignition of incompletely combusted Gases.
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FR341367A
(en)
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Fireplace
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CA86913A
(en)
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Smoke flue
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CA90688A
(en)
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Smoke flue
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FR366817A
(en)
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Combustion hearth similar to that of the bunsen burner, for solid fuels
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DK10718C
(en)
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Chimney for running stoves for burning dead animals.
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CH35504A
(en)
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Device for regulating the air admission to gas blue burners
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FR349861A
(en)
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Device intended to facilitate the draft of chimneys
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FR337412A
(en)
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Fire extinguisher for lamps burning vapors
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FR382577A
(en)
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Gas burner flow regulator
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