CH53640A
(en )
1912-03-16
Regulating valve for heating systems
FR12716E
(en )
1910-11-08
Regulating valve for heating systems
FR414118A
(en )
1910-08-26
Regulating valve for heating systems
FR430140A
(en )
1911-10-09
Regulating valve for heating systems
FR413903A
(en )
1910-08-22
Stove for heating homes
CH52944A
(en )
1912-01-16
Steam tap for heating systems
CH46681A
(en )
1910-04-01
Radiator for heating systems
FR419429A
(en )
1911-01-06
Regulating valve for steam heating
FR374637A
(en )
1907-06-18
Regulating valve for heating systems
FR452131A
(en )
1913-05-08
Boiler for heating systems
FR457333A
(en )
1913-09-16
Piston regulating valve for heating system radiators
FR427387A
(en )
1911-08-02
Boiler for heating homes
CH64421A
(en )
1914-04-01
Radiator for steam heating systems
FR405310A
(en )
1909-12-27
Improvements to boilers for heating systems
FR519251A
(en )
1921-06-07
Regulating valve especially suitable for central heating systems
FR475227A
(en )
1915-04-26
Advanced automatic steam trap for steam heating systems
FR421294A
(en )
1911-02-18
Draft system for heating installations
FR412852A
(en )
1910-07-25
Automatic valve for regulating heating devices
FR467329A
(en )
1914-06-09
Valve for heating systems and other applications
FR415978A
(en )
1910-10-08
Valve for bath heater
FR374499A
(en )
1907-06-14
Regulating valve for steam heating systems
FR412701A
(en )
1910-07-21
Improvements in the construction of radiators for heating systems
FR470488A
(en )
1914-09-12
Valve for bath heater
FR444453A
(en )
1912-10-18
Double adjustment valve for steam heating
FR474402A
(en )
1915-02-19
Improvements to heating systems