FR463476A
(en )
1914-02-24
Oxy-acetylene autogenous welding torch
CH60387A
(en )
1913-07-16
Water-cooled torches for oxy-fuel welding and melting of metals
FR452578A
(en )
1913-05-19
Tilting furnace for melting glass and metals
CH62675A
(en )
1913-12-01
Torches for oxy metal working
CH68736A
(en )
1915-04-16
Torches for oxy metal working
CH56892A
(en )
1912-12-02
Double torch for oxy-fuel metalworking
CH67014A
(en )
1914-11-02
Torches for oxy metal working
FR457209A
(en )
1913-09-13
Torch for cutting metals with oxygen
FR486602A
(en )
1918-04-23
Gas furnace for melting metals and alloys in crucibles
FR471029A
(en )
1914-10-10
Torch for welding metal
FR418241A
(en )
1910-12-03
Torch for autogenous oxy-acetylene welding of metals
FR444349A
(en )
1912-10-15
Torch enhancements for welding and metal cutting
AT72520B
(en )
1916-10-10
Recuperative crucible furnace for melting metals and alloys.
CH60386A
(en )
1913-07-16
Electric oscillating furnace for melting metals
FR486134A
(en )
1918-03-12
Heavy oil furnace for melting metals with special burner
FR492880A
(en )
1919-07-24
Gas furnace for melting metals and alloys in crucibles
FR441951A
(en )
1912-08-21
Furnace powered by liquid fuels for melting metals and their alloys and other metallurgical operations
FR493916A
(en )
1919-08-26
Furnace for melting steel and metals
CH51313A
(en )
1911-08-16
Process for oxy-fuel welding, cutting and soldering of metals
FR486785A
(en )
1918-05-08
Oscillating furnace for melting ferro-manganese and other alloys or metals
FR358833A
(en )
1906-03-09
Torch for autogenous metal welding
FR474131A
(en )
1915-02-09
Improvements in electrodes for melting furnaces
FR483147A
(en )
1917-05-31
Tilting electric furnace for melting and refining of metals
FR473924A
(en )
1915-02-02
Furnace for melting metals and in particular brass
FR480636A
(en )
1916-08-31
Recuperative crucible furnace for melting metals and alloys