DK56287C
(en )
1939-06-12
Hot water boiler, preferably for Central heating systems.
FI14746A
(en )
1932-11-18
Steam boiler, for steam or central heating installations
DK47675C
(en )
1933-08-21
Steel plate element boiler for heating systems.
DK62593C
(en )
1944-08-21
Sootblower for Boilers or similar Heaters.
DK48359C
(en )
1934-02-05
Oil-fired Boiler for Heating Systems.
DK56832C
(en )
1939-10-23
Steam system with steam boiler and hot water accumulator system as well as Procedure for Operation of the entire system.
DK66222C
(en )
1948-01-19
Water pipe boiler for the production of hot water.
DK56091C
(en )
1939-04-24
Heat meters for liquid, steam or air-carrying pipes.
DK49211C
(en )
1934-09-03
Water pipe steam boiler.
DK54927C
(en )
1938-07-04
Steam boiler or Water heater.
FR810691A
(en )
1937-03-26
Boiler for central heating systems
DK47562C
(en )
1933-07-24
Hot water boiler for oil heating.
DK54908C
(en )
1938-06-27
Flue pipe boiler.
FR818668A
(en )
1937-10-01
Hot water or steam boiler
FR807551A
(en )
1937-01-15
Hot water boiler
DK38230C
(en )
1927-12-12
Procedure for the Prevention of Deposition of Silica Boilers in Steam Boilers.
DK62315C
(en )
1944-06-06
Device for hot water boilers.
DK56880C
(en )
1939-10-30
Procedure and Facilities for Softening Boiler Feed Water.
DK54899C
(en )
1938-06-27
Steam boiler with feed water preheater.
DK55019C
(en )
1938-07-25
Low pressure boiler or Hot water boiler.
DK41099C
(en )
1929-11-18
Fireplace for Steam Boilers.
DK41040C
(en )
1929-11-04
Fireplace for Steam Boilers.
DK44040C
(en )
1931-04-20
Steam boiler with large Water Room.
DK57594C
(en )
1940-05-14
Water heater for domestic water heating.
DK59681C
(en )
1942-04-20
Low pressure steam heater of lattice-shaped welded pipes.