DK47675C
(en )
1933-08-21
Steel plate element boiler for heating systems.
DK48359C
(en )
1934-02-05
Oil-fired Boiler for Heating Systems.
DK48380C
(en )
1934-02-12
Radiator for Central heating system.
DK55558C
(en )
1938-12-12
Traction regulator for hot water heating systems.
DK45061C
(en )
1931-12-28
Device for regulating heating systems.
DK52670C
(en )
1937-02-08
Radiator for Central heating system.
DK47562C
(en )
1933-07-24
Hot water boiler for oil heating.
DK45198C
(en )
1932-02-08
Assembly device for sheet iron radiators.
DK55424C
(en )
1938-11-07
Fireplace, especially for Element Boilers.
DK44821C
(en )
1931-11-09
Manifolds for steel plate radiators.
DK56287C
(en )
1939-06-12
Hot water boiler, preferably for Central heating systems.
DK50954C
(en )
1935-11-25
For Central Heating Systems, Element Double Furnace or Element Boiler System for Waste Incineration.
DK55847C
(en )
1939-02-20
Water or steam boiler of steel plates for central heating systems.
DK46886C
(en )
1933-02-06
Magazine for Handguns.
DK47814C
(en )
1933-09-25
Burner for Oil Boiler.
DK48260C
(en )
1934-01-08
Central heating boiler.
FI14746A
(en )
1932-11-18
Steam boiler, for steam or central heating installations
DK48981C
(en )
1934-07-09
Devices at hot water heating systems.
DK50451C
(en )
1935-07-22
Element boiler.
DK44711C
(en )
1931-10-19
Heating plate for Fireplaces.
DK46936C
(en )
1933-02-13
Heat consumption measuring system for Radiators.
DK50229C
(en )
1935-05-13
Heating boiler for Water, especially for Central heating systems.
DK49058C
(en )
1934-07-30
Device for hobs for stoves.
CH167698A
(en )
1934-02-28
Central heating system.
DK50615C
(en )
1935-09-02
Indoor Heating System.