AT72520B
(en )
1916-10-10
Recuperative crucible furnace for melting metals and alloys.
FR480636A
(en )
1916-08-31
Recuperative crucible furnace for melting metals and alloys
ES61849A1
(en )
1916-04-01
Crucible furnace with recuperator, for melting metals and alloys.
CH70793A
(en )
1916-03-16
Furnace for melting metals
FR482351A
(en )
1917-03-16
Crucible furnace for melting metals
DK20204C
(en )
1915-05-31
Metal melting furnace.
FR488937A
(en )
1918-11-26
Hearth furnace for melting metals
FR518721A
(en )
1921-05-30
Furnace for melting readily fusible metals from scrap
DK12227C
(en )
1909-06-14
Crucible melting furnace.
FR486602A
(en )
1918-04-23
Gas furnace for melting metals and alloys in crucibles
FR492880A
(en )
1919-07-24
Gas furnace for melting metals and alloys in crucibles
ES63254A1
(en )
1916-12-01
Tilting electric furnace for melting and refining metals.
CH72191A
(en )
1916-05-16
Melting processes for metallurgical purposes and regenerative melting furnaces for practicing the same
FR493916A
(en )
1919-08-26
Furnace for melting steel and metals
CA91577A
(en )
1905-02-21
Metal melting furnace
CH64339A
(en )
1914-04-01
Melting furnace with tiltable crucible
FR436437A
(en )
1912-03-27
Blast furnace for smelting ores and metals
FR27273E
(en )
1924-05-31
Gas furnace for melting metals and alloys in crucibles
FR485821A
(en )
1918-02-08
Improvements to metal remelting furnaces for letterpress
DK16252C
(en )
1912-07-29
Melting furnace for the immediate production of iron and steel from iron ores.
FR16969E
(en )
1913-05-26
Gasifier furnace for metal smelting
FR404287A
(en )
1909-11-27
Gasifier furnace for metal smelting
FR16795E
(en )
1913-04-21
Gasifier furnace for metal smelting
FR468418A
(en )
1914-07-06
Process for the reduction of metallic ores, by fractional and successive melting, in shaft furnaces
CH38246A
(en )
1907-09-30
Wind furnace for melting metals