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PL409452A1
(pl)
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Kocioł wyposażony w podgrzewacz pary zewnętrznej
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SE70921C1
(OSRAM)
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GB749073A
(en)
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Convection air heaters for use in domestic open fire places
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GB606773A
(en)
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Improvement in air heaters
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GB575813A
(en)
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Improvements in and relating to domestic fireplaces
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GB609835A
(en)
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Improvements in hot air stoves
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GB558249A
(en)
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Improvements in air heaters or coolers
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CN205048487U
(zh)
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一种利用灶台烟气对水进行循环加热的节能系统
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PL128338U1
(pl)
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Kocioł grzewczy wodny na biomasę, w szczególności pellet z automatycznym palnikiem
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GB562492A
(en)
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Stoves for houses
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GB423991A
(en)
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Improvements in or relating to air-heating apparatus
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GB567282A
(en)
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Improvements in gas fires
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GB292292A
(en)
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Improvements in and relating to elastic fluid turbines
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GB513459A
(en)
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Heat engines for the conversion of thermal energy into mechanical energy
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GB543412A
(en)
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Improvements in heating means for use in connection with drying stoves and the like
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GB361485A
(en)
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Improvements in or relating to steam generators
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AT82977B
(de)
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In das Abzugsrohr eines Heizofens eingebaute Luftheizvorrichtung.
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GB909179A
(en)
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Hot water boiler
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PT11931Y
(pt)
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Aquecedor de água a gás
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GB244172A
(en)
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Improvements in or relating to domestic ranges or stoves
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GB549223A
(en)
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Improvements relating to gas-fired water heater
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GB571306A
(en)
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Improvements in heating apparatus for buildings
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GB539848A
(en)
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An improved method of, and apparatus for, heat exchange
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GB711661A
(en)
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Improvements in hot air stoves
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SE99937C1
(OSRAM)
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