CA178255A
(en )
1917-07-17
Electric arc furnace
CH72955A
(en )
1917-01-02
Process for creating electric arc furnaces
CH78641A
(en )
1918-12-16
Process for making electric ovens
CH74105A
(en )
1917-01-16
Electric hotplate
CH57150A
(en )
1912-12-16
Process for the utilization of electrode remnants from electrical melting furnaces
CH49810A
(en )
1911-04-01
Process for charging electrical resistance furnaces
CH76486A
(en )
1918-04-16
Electric furnace
CH75501A
(en )
1917-08-16
Electric transformer
CH73445A
(en )
1916-10-02
Process for eliminating furnace smoke
CH76851A
(en )
1918-02-16
Exchangeable melting chamber cover for electric melting furnaces
CH71159A
(en )
1915-12-01
Process and device for the production of electrical heating elements by means of the metal spraying process
CH72051A
(en )
1916-03-16
Process for the electrical cleaning of gases by means of high voltage currents
CH73037A
(en )
1917-01-02
Electric lamp
CH75559A
(en )
1917-08-16
Electric blueprint machine
CH72922A
(en )
1916-07-17
Process for the manufacture of electric radiators
CH72818A
(en )
1916-07-01
Electric iron
CH55888A
(en )
1912-09-16
Electric cremation furnace
CH75025A
(en )
1917-10-16
Electric oven
FR502964A
(en )
1920-05-31
Method of metallization of coals for electric arc lamps
FR445390A
(en )
1912-11-09
carbon electrode for electric ovens
FR436596A
(en )
1912-03-30
Coating for electric ovens
CH66595A
(en )
1914-09-16
Electric arc furnace
CH67728A
(en )
1915-01-16
Method of manufacturing electric radiators
CH72608A
(en )
1916-06-02
Electric cooker
CH74000A
(en )
1917-01-02
Electric cooker