CH27265A
(en )
1903-12-31
Boilers for hot water floor heating
CH22901A
(en )
1902-05-31
Boilers for hot water heating
CH437E
(en )
1904-05-15
Boilers for hot water heating
CH32524A
(en )
1905-08-15
Radiators for hot water heating
CH29281A
(en )
1904-07-31
Water heater
CH34006A
(en )
1906-02-15
Radiators for steam and water heating
CH29278A
(en )
1904-07-31
Electric hot water heating system
CH30842A
(en )
1905-01-31
Hot water heating
FR347587A
(en )
1905-03-15
Heating installation for buildings
CH24190A
(en )
1902-11-30
Steam generating boilers for heating purposes
CH29282A
(en )
1904-08-15
Heating installation for buildings
CH30305A
(en )
1904-11-30
Hot water heating system
CH30431A
(en )
1904-12-15
Hot water heating system
CH31713A
(en )
1905-04-30
Hot water heating system
CH32523A
(en )
1905-08-15
Hot water heating system
CH30302A
(en )
1904-11-30
Hot water heating system
CH38003A
(en )
1907-08-31
Articulated boiler for hot water heating
FR352291A
(en )
1905-08-07
Economical boiler for domestic heating
CH23078A
(en )
1902-05-31
Boilers for water heating systems
CH28822A
(en )
1904-06-15
Steam boiler system
CH29138A
(en )
1904-07-31
Hot water central heating system with auxiliary boiler that can be heated by gas
CH28568A
(en )
1904-05-15
Section steam boiler
DK5800C
(en )
1903-07-13
Device at hot water heating system.
CH33881A
(en )
1906-01-31
Hot water central heating system
CH29388A
(en )
1904-08-31
Heating installation