FR16340E
(en )
1913-01-07
Advanced element boiler, for central heating
CH46000A
(en )
1910-01-17
Advanced element boiler, for central heating
CH53510A
(en )
1912-03-01
Advanced element boiler, for central heating
CH46001A
(en )
1910-01-17
Advanced element boiler, for central heating
FR410059A
(en )
1910-05-10
Boiler with advanced elements, for central heating
FR421063A
(en )
1911-02-14
Combined heating system for several boilers
FR406923A
(en )
1910-02-15
Heating boiler
CH42009A
(en )
1908-12-16
Radiator for steam heating
FR397036A
(en )
1909-04-27
Mixed heating boiler
FR419429A
(en )
1911-01-06
Regulating valve for steam heating
FR388189A
(en )
1908-08-04
Automatic steam trap for steam heating
CH46681A
(en )
1910-04-01
Radiator for heating systems
FR378130A
(en )
1907-09-25
Automatically operated boiler for domestic heating
FR444453A
(en )
1912-10-18
Double adjustment valve for steam heating
FR378481A
(en )
1907-10-05
Boiler for steam heating
FR416940A
(en )
1910-11-02
Steam central heating system
FR478726A
(en )
1916-01-05
Element heating boiler
CH43282A
(en )
1909-04-16
Radiator for heating
CH57933A
(en )
1913-02-17
Oil-fired heater, advanced
FR496284A
(en )
1919-10-31
Central heating boiler heaters
DK12205C
(en )
1909-06-07
Coat for Heating Elements.
FR385759A
(en )
1908-05-23
Radiators for steam heating, hot water, etc.
CH44484A
(en )
1909-08-16
Device for steam heating
DK18834C
(en )
1914-05-18
Ceramic Heater for Central Heating.
FR379670A
(en )
1907-11-15
Radiator for heating buildings