CH80188A
(en )
1919-02-17
Double adjustable valve for central heating with hot water or steam operation
CH76886A
(en )
1918-07-01
Regulating valve for steam and hot water heating
CH79446A
(en )
1918-12-02
Boilers for hot water heating
AT82975B
(en )
1921-02-25
Exhaust steam storage with hot water heating.
CH80658A
(en )
1919-09-01
Device for hot water or steam preparation with electric heating for flow operation
FR504358A
(en )
1920-07-02
Dual adjustment central heating radiator valve
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
CH69675A
(en )
1915-10-16
Regulating valve for steam and hot water heating
NL7591C
(en )
1922-09-15
Integrated heat meter for hot water heating.
DK22271C
(en )
1917-07-16
Heater for Hot water and Steam heating.
CH77838A
(en )
1918-10-16
Control and shut-off valve for steam, water etc.
DK25783C
(en )
1920-04-06
Hot water heating system.
CH78648A
(en )
1918-08-16
Gas cooking facility with hot water supply
ES77614A1
(en )
1921-07-01
Stove for steam heating or hot water heating.
GB120097A
(en )
1918-10-28
Improvements relating to Valves for Steam Heating Apparatus.
DK33529C
(en )
1924-08-11
Heating boiler for heating systems with low-pressure steam or hot water heating.
FR569494A
(en )
1924-04-12
Regulating valve for central heating systems with water or steam
DK22900C
(en )
1918-03-18
Water heater with hot water tap and circulation line for gas appliances and the like.
FR523978A
(en )
1921-08-27
Faucet for central heating with hot water or low pressure steam
FR575335A
(en )
1924-07-28
Double adjustment valve for hot water or steam heating systems
CA194575A
(en )
1919-12-09
Hot water heater
CA194628A
(en )
1919-12-09
Hot water heater
CH81109A
(en )
1919-05-16
Hot water bottle
ES86371A1
(en )
1923-10-16
Improvements in the boilers for heating by hot water or steam.
FR497841A
(en )
1919-12-18
Hot water central heating boiler