CH32264A
(en )
1905-09-15
Draft regulator for hot water heating systems
AT25833B
(en )
1906-09-25
Heat regulator for steam heating.
CH34006A
(en )
1906-02-15
Radiators for steam and water heating
CH33881A
(en )
1906-01-31
Hot water central heating system
CH42293A
(en )
1909-01-16
Draft regulator on hot water heating systems
AT21991B
(en )
1905-11-10
Temperature controller for hot steam.
DK8024C
(en )
1905-11-20
Hot water heating system.
CH38003A
(en )
1907-08-31
Articulated boiler for hot water heating
CH37715A
(en )
1907-07-31
Temperature regulator for hot water baths
CH36261A
(en )
1906-12-15
Furnace for hot water heating
CH43520A
(en )
1909-05-17
Regulating valve for central heating radiators
CH32524A
(en )
1905-08-15
Radiators for hot water heating
DK6998C
(en )
1904-10-24
Hot water heating system.
AT23735B
(en )
1906-04-10
Hot water heating system.
DK8655C
(en )
1906-07-16
Hot water heating system.
FR12397E
(en )
1910-09-03
Temperature regulator for steam heating systems
FR390254A
(en )
1908-10-01
Temperature regulator for steam heating systems
DK7591C
(en )
1905-06-13
Device for hot water heaters.
CH32523A
(en )
1905-08-15
Hot water heating system
CH31713A
(en )
1905-04-30
Hot water heating system
CH30431A
(en )
1904-12-15
Hot water heating system
CH30305A
(en )
1904-11-30
Hot water heating system
CH30302A
(en )
1904-11-30
Hot water heating system
FR383959A
(en )
1908-03-25
Pneumatic heating regulator
FR355288A
(en )
1905-10-27
Temperature regulator