CH67017A
(en )
1914-11-02
Control tap for hot water and steam heating
CH69675A
(en )
1915-10-16
Regulating valve for steam and hot water heating
CH51607A
(en )
1911-09-16
Hot water boiler with indirect heating
AT52384B
(en )
1912-02-26
Articulated boiler for hot water heating.
CH60368A
(en )
1913-07-16
Double regulating valve for hot water heating with concealed stuffing box
DK16662C
(en )
1912-11-18
Control tap with double Setting for Hot water and Low pressure steam heating systems.
CH70396A
(en )
1915-09-16
Radiators for steam hot water heating systems
CH54803A
(en )
1912-06-17
Hot water heating for remote operation
CH70999A
(en )
1915-11-16
Hot water heating system
DK19946C
(en )
1915-03-08
Double-adjustable control valve for steam and hot water heating pipes.
CH57113A
(en )
1912-12-16
Regulating tap for low pressure steam heating
CH61151A
(en )
1913-09-01
Hot water boiler
CH57474A
(en )
1913-01-02
Cooking stove with articulated boiler for hot water heating
CH76886A
(en )
1918-07-01
Regulating valve for steam and hot water heating
CH58851A
(en )
1913-04-01
Hot water boiler for installation in cooking stoves
CA143652A
(en )
1912-10-22
Hot water boiler or heater
CA150666A
(en )
1913-09-23
Hot water and steam boiler
DK18271C
(en )
1913-12-22
Hot water supply and Central heating systems.
FR19026E
(en )
1914-09-01
High speed hot water heating boiler
FR24482E
(en )
1922-07-20
Regulating valve for steam and hot water heating systems
CH67855A
(en )
1915-01-16
Steam hot water radiator
CA140577A
(en )
1912-05-21
Hot water heater or boiler
CH47083A
(en )
1910-05-16
Articulated boiler for hot water heating
DK16088C
(en )
1912-06-17
Arrangement of the flues in steam or hot water element boilers.
CH59604A
(en )
1913-05-16
Steam heating installation