CH80891A
(en )
1919-09-16
Power supply for electric arc furnaces for multi-phase current with bottom electrodes
CH81216A
(en )
1919-10-16
Bottom electrode for electric melting furnaces
CH76852A
(en )
1918-06-17
Electrode furnace for three-phase current with multiple arcs
FI5718A
(en )
1914-04-23
Gastronomic inspection for electric power supply with power supply
CH80127A
(en )
1919-06-02
Electric spark plug with central power supply electrode
CH78479A
(en )
1918-08-01
Terminal for the electrodes of electric arc furnaces
CH81688A
(en )
1919-11-17
Electric melting furnace for arc heating
CH82523A
(en )
1919-10-01
Electric arc furnace with auxiliary resistance heating
CH77994A
(en )
1918-06-17
Electrode cover for electric arc furnaces
CH79681A
(en )
1919-02-01
Electric soldering iron
AT80071B
(en )
1920-02-25
Electrode holder for electric furnaces with electric arc heating. gene heating.
CH69233A
(en )
1915-06-01
Cooled bottom electrode for electric melting furnaces
FI6564A
(en )
1917-01-18
Electrical power supply
FI6122A
(en )
1915-08-13
Electrode arrangement for electric power supply and power supply electrodes
CH81205A
(en )
1919-05-16
High voltage direct current machine
CH78721A
(en )
1918-11-16
Electric latch switch
CH80960A
(en )
1919-10-01
Electric oven
CH79257A
(en )
1918-10-16
Electrode holder for electric ovens
CH78850A
(en )
1918-09-02
Electrode holder for electric ovens
CH78597A
(en )
1918-08-16
Electrode holder for electric ovens
CH81689A
(en )
1919-12-01
Tilting electric furnace for metallurgical purposes with arc heating
CH81206A
(en )
1919-05-16
Portable electric power generation system
CH78396A
(en )
1918-07-16
Electric heater
FI8527A
(en )
1921-06-22
Control unit for electric power supply with explosion-proof motor with high voltage
CH82330A
(en )
1919-09-16
Electric switch