DK48359C
(en )
1934-02-05
Oil-fired Boiler for Heating Systems.
DK47675C
(en )
1933-08-21
Steel plate element boiler for heating systems.
DK56287C
(en )
1939-06-12
Hot water boiler, preferably for Central heating systems.
DK50229C
(en )
1935-05-13
Heating boiler for Water, especially for Central heating systems.
DK48160C
(en )
1933-12-18
Control device for Heaters, especially for Central heating systems.
FI14746A
(en )
1932-11-18
Steam boiler, for steam or central heating installations
DK47123C
(en )
1933-03-20
Air preheater for introduction of air in tiled stoves, stoves, boilers or other heating systems.
DK55424C
(en )
1938-11-07
Fireplace, especially for Element Boilers.
DK50615C
(en )
1935-09-02
Indoor Heating System.
DK50198C
(en )
1935-04-29
Oil burner for stoves, central heating systems and similar systems.
ES143065A1
(en )
1936-11-01
Improvements in heating systems, especially by means of small-caliber fuels.
DK48380C
(en )
1934-02-12
Radiator for Central heating system.
DK52320C
(en )
1936-10-19
System for Heating Consumption Water.
DK47562C
(en )
1933-07-24
Hot water boiler for oil heating.
DK36413C
(en )
1926-08-23
Boiler for heating systems or similar.
DK52670C
(en )
1937-02-08
Radiator for Central heating system.
DK58094C
(en )
1940-10-21
Waste incineration plants, e.g. Kitchen waste.
DK48260C
(en )
1934-01-08
Central heating boiler.
DK47449C
(en )
1933-06-19
Fuel-saving device for fireplaces, especially in stoves for central heating systems.
ES137161A1
(en )
1935-06-01
A heating system.
ES141903A1
(en )
1936-08-01
Improvements in small coal burners, for use in heating and industrial boilers.
DK53618C
(en )
1937-09-20
Water heater for Heating Consumption water.
ES138406A1
(en )
1936-06-16
A new heating system.
DK55847C
(en )
1939-02-20
Water or steam boiler of steel plates for central heating systems.
DK49505C
(en )
1934-11-12
Device for automatic regulation of steam heating systems, especially for railway carriages.