CH69366A
(en )
1915-06-16
Process for smelting metals and furnace for practicing this process
CH75169A
(en )
1917-06-16
Process for the treatment of molten material, alloys and the like and a flame furnace for its practice
CH72403A
(en )
1916-05-16
Method and furnace for roasting ores
CH71258A
(en )
1915-12-16
Process to improve the operation of electrically operated melting furnaces for steel and iron
CH57634A
(en )
1913-01-16
Method and furnace for reducing or melting ores by electrical means
CH70333A
(en )
1915-09-16
Method of transferring energy and apparatus for practicing this method
CH72083A
(en )
1916-04-01
Process for roasting zinc blende and other sulfur-containing ores in muffle furnaces
CH74364A
(en )
1917-06-01
Cementing and hardening process and furnace for performing the process
CH62787A
(en )
1913-12-16
Process and device for the deslagging of furnaces with beams
AT88397B
(en )
1922-05-10
Method and device for utilizing the sulfur contained in blast furnace slag.
CH59894A
(en )
1913-06-16
Process for the preparation of zinc and other similarly behaving metals and furnace for the practice of the process
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
CH67012A
(en )
1914-11-02
Process for decarburizing metals
CH78798A
(en )
1918-09-02
Process for the partial tinning of sheet metal
CH78964A
(en )
1918-09-16
Process for smelting smelting materials
CH81875A
(en )
1919-07-16
Process and device for utilizing the waste heat from electrical melting furnaces
AT80059B
(en )
1920-02-25
Method and furnace for annealing metal blocks with method and furnace for annealing metal blocks by means of traveling fire. ttels wandering fire.
AT52348B
(en )
1912-02-26
Method and device for deslagging of mild iron and mild steel in a hearth furnace.
AT88409B
(en )
1922-05-10
Process for hardening fats and fatty acids.
CH72191A
(en )
1916-05-16
Melting processes for metallurgical purposes and regenerative melting furnaces for practicing the same
CH60349A
(en )
1913-07-16
Metallurgical furnace for the direct production of iron and steel from iron ores and process for its production
CH83155A
(en )
1919-11-17
Process for smelting lead ores with basic gangue
CH82567A
(en )
1919-10-01
Firing process in furnaces with a horizontal firing channel and equipment for carrying out this process
FR485187A
(en )
1917-12-19
Improvements to furnaces for roasting ores
CH51312A
(en )
1911-08-16
Process for refining metal alloys