CH80926A
(en )
1919-09-16
Flow-through boiler for water heating with electrical heating through metal resistors
CH80658A
(en )
1919-09-01
Device for hot water or steam preparation with electric heating for flow operation
CH81087A
(en )
1919-10-01
Electric radiator with resistance spiral
CH80607A
(en )
1919-03-17
Electrical resistance element
CH81837A
(en )
1919-12-16
Steam boiler with electrical resistance heating
CH79446A
(en )
1918-12-02
Boilers for hot water heating
CH81961A
(en )
1919-12-16
Boiler electrically heated by heating resistors
CH82021A
(en )
1919-08-16
Electric heater for cooking vessels
CH80737A
(en )
1919-08-16
Steam boiler with electric heating
CH80497A
(en )
1919-03-17
Section by section boiler for heating flowing, gaseous or liquid fluids by means of electrical heating
CH79447A
(en )
1918-11-16
Electric immersion heater
FR518753A
(en )
1921-05-31
Electric heating device for boiler
CH80568A
(en )
1919-03-17
Drying system with heating by fuel
AU875018B
(en )
1919-07-15
Improvements in water heaters
AU941118B
(en )
1919-11-05
Improvements in water heaters
AU713818B
(en )
1919-05-06
Improvements in electric water heaters
CH81665A
(en )
1919-07-01
water tap
CH82466A
(en )
1919-10-01
Soldering iron with electrical resistance heating
CH78648A
(en )
1918-08-16
Gas cooking facility with hot water supply
CH77890A
(en )
1918-06-01
Water heaters on electric cookers
FR489855A
(en )
1919-03-19
Electric heater for various applications
FR498589A
(en )
1920-01-15
Resistance elements for electric heating
CH80659A
(en )
1919-04-01
Electric resistance heater for high temperatures
CH81873A
(en )
1919-08-01
Electric heat storage heater
CH81503A
(en )
1919-06-16
water tap