Subject Description


Heating and lighting equipment

OCM Identifier


Subject Description

Systems for the lighting, heating, insulation, ventilating and air-conditioning of buildings; hearths and fireplaces; special lighting equipment (e.g., candles, oil lamps, gas lights, electric lights); special heating appliances (e.g., wood, coal, oil, gas, and electric stoves and furnaces); air-conditioning installations; insulating materials; etc.

Equipment and maintenance of buildings

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