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WO2020070708A1
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Inert mixture and use thereof as a phase change material
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EP2133627A2
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Device for recovery of the fume heat and discharge of combustion fumes for a boiler
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EP2133630A2
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Device for recovery of the fume heat and discharge of combustion fumes for a boiler
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EP1826333A2
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Roofing tile provided with chimney outlet
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EP1826487A2
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Flue gas discharge device for boilers
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WO2006059215A1
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A device for recovery of flue-gas heat of a domestic boiler
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EP1500893A1
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Regenerator / heat exchanger
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GB0112043D0
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Extensible pipe with end locking system for boilers and the like
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NL1018075C1
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Pipe Coupling.
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