CH81216A
(en )
1919-10-16
Bottom electrode for electric melting furnaces
CH81689A
(en )
1919-12-01
Tilting electric furnace for metallurgical purposes with arc heating
DK28762C
(en )
1921-11-07
Electric Melting Furnace.
DK25964C
(en )
1920-05-17
Electric Melting Furnace.
DK30654C
(en )
1922-11-13
Electric Melting Furnace.
CH78479A
(en )
1918-08-01
Terminal for the electrodes of electric arc furnaces
CH69233A
(en )
1915-06-01
Cooled bottom electrode for electric melting furnaces
AT80071B
(en )
1920-02-25
Electrode holder for electric furnaces with electric arc heating. gene heating.
CH78396A
(en )
1918-07-16
Electric heater
CA188727A
(en )
1919-02-18
Electric melting furnace
CH80070A
(en )
1919-02-01
Electric heating tile
CH82523A
(en )
1919-10-01
Electric arc furnace with auxiliary resistance heating
AT82814B
(en )
1921-02-25
Electric heater.
CH76852A
(en )
1918-06-17
Electrode furnace for three-phase current with multiple arcs
CH78642A
(en )
1918-08-16
Device for electric space heating
CH80479A
(en )
1919-03-01
Device for electric space heating
CH81075A
(en )
1919-05-01
Device for electric space heating
CA190467A
(en )
1919-05-20
Electrical heating furnace
CH78597A
(en )
1918-08-16
Electrode holder for electric ovens
CH78850A
(en )
1918-09-02
Electrode holder for electric ovens
CH79257A
(en )
1918-10-16
Electrode holder for electric ovens
CH80361A
(en )
1919-07-16
Electric heater
CH77994A
(en )
1918-06-17
Electrode cover for electric arc furnaces
CH71673A
(en )
1916-02-01
Electric heating furnace
CH79414A
(en )
1919-04-01
Process for operating electric furnaces with combined arc and resistance heating