IC 011. US 013 021 023 031 034. G & S: Heating installations; heating apparatus and systems, namely, hot water space heating apparatus, hot air space heating apparatus, heating boilers; central heating systems and installations, namely, heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or hot water circulates; boilers, namely, oil-fired electrical boilers and gas-fired electrical boilers; furnace boilers and industrial boilers; boiler pipes, namely, pipes for heating boilers; burners, namely, oil-fired burners for commercial and domestic use, and gas-fired burners for commercial and domestic use; radiators
IC 037. US 100 103 106. G & S: Maintenance, installation and repair of heating systems and installations including central heating systems and installations, boilers and burners; maintenance, installation and repair of apparatus for controlling heating systems and installations including central heating systems and installations, boilers and burners
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