FR589522A
(en )
1925-05-30
Improvements to heat exchangers
DK32954C
(en )
1924-03-17
Device for regulating the supply of a heating medium to radiators in heating pipes.
FR550944A
(en )
1923-03-23
heat exchanger
FR542897A
(en )
1922-08-23
Independent boiler for central heating
DK39659C
(en )
1928-12-27
Automatic Shut-off device for the heat source for a medium that is desired to be heated to a certain temperature.
FR513916A
(en )
1921-02-26
New central heating boiler
DK31296C
(en )
1923-02-12
Apparatus for Sealing Heating Pipes in Boiler Walls.
DK29505C
(en )
1922-04-18
Device at hot water heating system.
FR553949A
(en )
1923-06-01
Improvements to heat exchanger devices
DK29120C
(en )
1922-01-02
Boiler for Water Heating System.
FR547624A
(en )
1922-12-20
Improvement in heating radiators
DK31621C
(en )
1923-04-30
Device for steam and hot water radiators.
FR25124E
(en )
1922-12-16
Hot water heating
FR559496A
(en )
1923-09-15
heat exchanger
DK30301C
(en )
1922-09-18
Hot water heating system.
FR509050A
(en )
1920-10-29
Heat recovery unit for heating devices
DK31843C
(en )
1923-06-11
Device for regulating the gas and air supply to gas furnaces.
AT104478B
(en )
1926-10-25
Steam boiler system with heat storage.
DK31645C
(en )
1923-04-30
Water supply pipes for gas generators.
DK33529C
(en )
1924-08-11
Heating boiler for heating systems with low-pressure steam or hot water heating.
DK24131C
(en )
1919-02-24
Hot water boiler for Stoves.
DK31886C
(en )
1923-06-25
Steam and Hot Water Radiator.
DK29375C
(en )
1922-02-20
Central heating system for steam for use in connection with a tiled stove.
FR26885E
(en )
1924-03-19
Improvements to heat radiators
DK34935C
(en )
1925-08-31
Device at hot water supply system.