CH69675A
(en )
1915-10-16
Regulating valve for steam and hot water heating
CH76886A
(en )
1918-07-01
Regulating valve for steam and hot water heating
CH67017A
(en )
1914-11-02
Control tap for hot water and steam heating
CH60368A
(en )
1913-07-16
Double regulating valve for hot water heating with concealed stuffing box
DK19946C
(en )
1915-03-08
Double-adjustable control valve for steam and hot water heating pipes.
CH70396A
(en )
1915-09-16
Radiators for steam hot water heating systems
CH55807A
(en )
1912-09-16
Regulating valve for radiators in heating systems
FR529993A
(en )
1921-12-10
Regulating valve for steam and hot water heating systems
CH71780A
(en )
1916-02-16
Radiator arrangement for steam, hot water and mixed heating systems
CH80188A
(en )
1919-02-17
Double adjustable valve for central heating with hot water or steam operation
CH57113A
(en )
1912-12-16
Regulating tap for low pressure steam heating
FR444453A
(en )
1912-10-18
Double adjustment valve for steam heating
CH67855A
(en )
1915-01-16
Steam hot water radiator
AT52384B
(en )
1912-02-26
Articulated boiler for hot water heating.
CH51607A
(en )
1911-09-16
Hot water boiler with indirect heating
DK22271C
(en )
1917-07-16
Heater for Hot water and Steam heating.
CH78836A
(en )
1918-09-02
Alternating shut-off device for the main line of hot water heating systems, water heating systems, gas tanks or the like
CH79446A
(en )
1918-12-02
Boilers for hot water heating
DK16662C
(en )
1912-11-18
Control tap with double Setting for Hot water and Low pressure steam heating systems.
CH52370A
(en )
1911-11-16
Air humidifier for steam and hot water radiators
DK21950C
(en )
1917-02-26
Hot water heater.
CH57474A
(en )
1913-01-02
Cooking stove with articulated boiler for hot water heating
CH57476A
(en )
1913-01-16
Hot water circulation heater for gas, petroleum or alcohol heating
CH70879A
(en )
1915-11-01
Cooking stove with built-in hot water boiler for central heating
CH43520A
(en )
1909-05-17
Regulating valve for central heating radiators