DK33607C
(en )
1924-09-01
Method for the manufacture of hot water tanks for central heating systems and the like.
SU8872A1
(en )
1929-04-30
The method of heating steam boilers
SU15145A1
(en )
1930-04-30
The method of pickling sheet iron
DK29749C
(en )
1922-06-19
Boiler for Central heating systems and the like.
DK36188C
(en )
1926-07-05
Traction regulator for hot water heating systems.
DK35591C
(en )
1926-02-08
Water heater for Stoves.
DK45771C
(en )
1932-06-06
Heater for electric water heaters.
DK39613C
(en )
1928-12-17
Expansion tank with Hot water tank.
DK38674C
(en )
1928-04-16
Water heater, specially designed for gas heating.
DK39698C
(en )
1929-01-07
Shut-off and control tap for steam and water heating systems.
DK48981C
(en )
1934-07-09
Devices at hot water heating systems.
DK39347C
(en )
1928-10-08
Shut-off tap for heaters.
DK37589C
(en )
1927-06-13
Heat meters for hot water heating systems.
DK36413C
(en )
1926-08-23
Boiler for heating systems or similar.
DK40262C
(en )
1929-06-10
Electric Heat Consumption Meter for Central Heating Systems and the like.
DK32583C
(en )
1923-12-03
Shut-off tap for heaters.
DK34352C
(en )
1925-04-06
Device at Hot water heating or Hot water supply system.
AT102610B
(en )
1926-02-25
Self-regulating gas and water valve for liquid heaters.
DK40654C
(en )
1929-08-19
Heating or cooling element.
DK32743C
(en )
1924-01-21
Boiler for Central heating system.
DK51480C
(en )
1936-04-06
Expansion tank for hot water central heating system.
DK53270C
(en )
1937-07-05
Hot water central heating system.
DK44860C
(en )
1931-11-16
Water heater or Boiler.
ES106389A1
(en )
1928-04-16
Method of construction of ceramic pipes for pipes.
DK53793C
(en )
1937-11-01
Traction regulator for hot water central heating boilers.