CH47911A
(en )
1910-08-16
Procedure for operating hot water heating systems
CH73896A
(en )
1917-05-01
CH steam heating system
CH47083A
(en )
1910-05-16
Articulated boiler for hot water heating
CH54746A
(en )
1912-06-17
Device for cooling or heating liquids
CH47073A
(en )
1910-05-16
Oven for heating water
DK11914C
(en )
1909-03-08
Hot water system.
CH75632A
(en )
1918-01-16
Process for heating the fresh water for hot water supply of buildings etc.
CH50033A
(en )
1911-04-17
Water heater
FR406923A
(en )
1910-02-15
Heating boiler
FR439367A
(en )
1912-06-12
Heating system
CH49734A
(en )
1911-03-16
Cooking apparatus with device for heating water
FR405245A
(en )
1909-12-23
Hot water heating system
DK21285C
(en )
1916-06-19
Steam heating system.
CA118269A
(en )
1909-05-11
Hot water heating apparatus
AT52384B
(en )
1912-02-26
Articulated boiler for hot water heating.
DK11049C
(en )
1908-07-13
Preheating device for steam water heaters.
CH46151A
(en )
1910-03-16
Cooking apparatus for tourists etc.
CH57969A
(en )
1913-02-17
Device for closing ovens
DK8655C
(en )
1906-07-16
Hot water heating system.
DK21104C
(en )
1916-03-20
Hot water heating system.
CH50032A
(en )
1911-04-17
Articulated boiler for hot water and steam heating
DK10176C
(en )
1907-11-04
Device for hot water heating systems.
CH47637A
(en )
1910-07-16
Heating installation
CH46413A
(en )
1910-03-01
Fire stove with water preheater for washing facilities
AT57829B
(en )
1913-02-25
Hot water rapid circulation heating.