CH47954A
(en )
1910-09-01
Electric furnace for treating gases
CH39061A
(en )
1908-01-16
Electric furnace for treating gases
CH36825A
(en )
1907-03-15
Electric furnace for the treatment of gases by means of a moving arc
CH34493A
(en )
1906-04-30
Electric furnace for treating gases by means of electric flame arcs
CH33465A
(en )
1905-12-15
Apparatus for treating gases by means of electric arcs
CH71393A
(en )
1916-01-03
Method and device for interrupting electric arcs
CH49492A
(en )
1911-02-16
Electric furnace
CH58407A
(en )
1913-03-01
Electric low voltage furnace for carrying out gas reactions
CH48302A
(en )
1910-10-01
Electric induction furnace
CH50424A
(en )
1911-06-01
Electric induction furnace
CH46377A
(en )
1910-03-01
Electric oven
CH50423A
(en )
1911-05-16
Electric oven
CH35463A
(en )
1906-08-31
Furnace for the treatment of gases and gas mixtures by means of movable electric arcs
AT60971B
(en )
1913-09-10
Electric induction retort furnace.
FR422374A
(en )
1911-03-20
Electric ovens
CH38046A
(en )
1907-08-31
Apparatus for treating gases with an electric arc
CH50274A
(en )
1911-05-16
Electric timer
CH45129A
(en )
1909-10-16
Method of treating gases by means of high-voltage electric flame arcs
CH49810A
(en )
1911-04-01
Process for charging electrical resistance furnaces
DK12550C
(en )
1909-09-27
Electric Induction Furnace.
DK15647C
(en )
1912-02-26
Oven for Treating Gases with an Electric Arc.
DK15718C
(en )
1912-03-11
Oven for Treating Gases with an Electric Arc.
CH55034A
(en )
1912-07-16
Electric gas treatment furnace
CH49483A
(en )
1911-02-16
Magnetic electric generator
CH51272A
(en )
1911-08-16
Process for the creation and maintenance of long, almost horizontal electric arcs