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PT102472A
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Gas burner with ventilation forced for boiler
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PL170969B1
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Gas burner with plurality of combustion heads
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EP0456582A1
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Condensing boiler with heat transport fluid
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KR0164588B1
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Condensing boiler for heating with a heat-conveying liquid
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FR2655134A1
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HEATER BOILER WITH HEAT FLUID.
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FR2640028A2
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CONDENSING BOILER FOR HEATER WITH HEAT FLUID
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FR2638223A1
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INSTALLATION AND APPARATUS FOR THE HEATING AND PRODUCTION OF INDIVIDUAL DOMESTIC HOT WATER FROM A COLLECTIVE BOILER
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FR2633372A1
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WATER FINS EXCHANGER FOR BOILER
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FR2619200A1
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HEATER BOILER WITH HEAT FLUID
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FR2616894A1
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HEAT EXCHANGE AND SOUNDPROOFING DEVICE FOR BOILER
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EP0141707A2
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Condensing boiler for heating a heat carrier fluid
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