CH68785A
(en )
1915-05-01
Regulating device on gas heated liquid heaters
CH68620A
(en )
1915-04-01
Liquid heater system with gas heating
CH67579A
(en )
1914-12-16
Heating device on ovens
FR515564A
(en )
1921-04-04
Heating device
CH68818A
(en )
1915-04-16
Heating device on gas iron with internal heating
DK21475C
(en )
1916-09-04
Liquid heater with Gas heating.
CH69293A
(en )
1915-08-16
Liquid heater
FR460970A
(en )
1913-12-16
Heating device
FR477959A
(en )
1915-11-18
Heating device for all applications
DK20867C
(en )
1916-01-03
Heating device for thermal Phones.
CH66069A
(en )
1914-10-01
Heating device for hot water heating with electrically heated heating resistors
CH69731A
(en )
1915-07-16
Heating device
DK21371C
(en )
1916-07-24
Adjustment and filling device for automatic liquid-filled heat regulators.
CH67533A
(en )
1914-12-16
Electric heating element for heating liquids
CH63312A
(en )
1914-01-16
Cooking box with heating device
CH67323A
(en )
1914-12-01
Burner device on gas cookers and gas heaters
FR471585A
(en )
1914-11-03
Temperature regulating device
CH70726A
(en )
1915-11-01
Heating element
FR480130A
(en )
1916-06-22
Electric heater
DK21061C
(en )
1916-03-06
Liquid Heating Device.
CH53905A
(en )
1912-04-01
Cooking stove with heating device
CH59305A
(en )
1913-05-02
Cooking stove with heating device
DK18713C
(en )
1914-04-20
Heat regulator for tiled stoves.
DK23168C
(en )
1918-06-17
Heat transfer device.
CH59481A
(en )
1913-05-16
Tap with regulating device for heating systems