CH69901A
(en )
1915-08-02
Electric hot water heating with heat storage
CH71888A
(en )
1916-03-01
Electric heating device with heat storage
CH73173A
(en )
1916-09-01
Hot water tank with electric heating
CH74829A
(en )
1917-04-16
Electric cooker with heat storage
CH71294A
(en )
1915-12-16
Electric heating and heat accumulation process using hot water heating
CH71899A
(en )
1916-03-01
Self-cooking with electric heating
CH69941A
(en )
1915-08-02
Oven with electrically heated heating tubes
CH55164A
(en )
1912-07-16
Hot water radiator with electrical heat generator
CH76897A
(en )
1918-07-16
Electric hot water central heating
CH75224A
(en )
1917-11-16
Electric cooking device with heat storage device
CH73071A
(en )
1917-01-02
Tiled stove with electric heating
CH81873A
(en )
1919-08-01
Electric heat storage heater
CH75749A
(en )
1917-09-17
Hot water reservoir with electric liquid heater
CH79433A
(en )
1918-11-16
Hot water reservoir with electric liquid heater
CH65876A
(en )
1914-07-16
Electrically heated heat storage
DK23495C
(en )
1918-09-09
Hot water heating system with heat collector.
CH70575A
(en )
1915-10-01
Electric heating element
CH66069A
(en )
1914-10-01
Heating device for hot water heating with electrically heated heating resistors
CH57444A
(en )
1913-01-02
Hot water heating system with circulation pump
FR490077A
(en )
1919-04-01
Catelle stove for electric heating
CH71562A
(en )
1916-06-16
Catelle stove for electric heating
CH80630A
(en )
1919-04-01
Catelle stove for electric heating
CH70574A
(en )
1915-10-01
Electric heater
CH71001A
(en )
1915-11-16
Electric heater
CH75750A
(en )
1918-02-16
Electric bed warmer with iron resistance