07
Motors driven by steam and hot gas
09
Apparatus and instruments for the conversion of sunlight to
electric energy, particularly for the fields of conduction,
transformation, storage, regulation and control of light and
electric energy; solar cells; electric generators; apparatus
and instruments for the conversion of sunlight into heat
11
Apparatus for lighting, heating, steam generating, cooking,
refrigerating, drying, ventilating, water supply and
sanitary purposes; heat exchangers; heat pumps; electric
solar collectors; solar accumulators; steam and gas
generators; apparatus and instruments for the
humidification, cleaning and deodorising of air; air
conditioning and ventilation apparatus; solar furnaces
37
Installation, maintenance and repair of apparatus for the
conversion of sunlight energy into electric energy and/or
heat, of apparatus and instruments for the conversion of
sunlight into electric energy, particularly for the fields
of conduction, transformation, storage, regulation and
control of light and electric energy, of solar cells, of
electric generators, of apparatus for lighting, heating,
steam generating, cooking, refrigerating, drying,
ventilating, water supply and sanitary purposes, of
apparatus and instruments for conversion of sunlight to
heat, of heat exchangers, of heat pumps, of electric solar
collectors, of solar accumulators, of steam and gas
generators, of motors driven by steam and hot gas, of
apparatus and instruments for the humidification, cleaning
and desodorising of air, of air conditioning and ventilation
apparatuses
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