CH61243A
(en )
1913-09-16
Insert box for cementing and annealing iron and steel
CH60587A
(en )
1913-08-01
Process for cementing and hardening iron and steel
CH57094A
(en )
1912-12-16
Process for case hardening iron and steel objects
AU547812B
(en )
1913-07-15
Composition of matter for treating east iron and steel
FR430808A
(en )
1911-10-25
Loader-unloader for metallurgical furnaces
CH63395A
(en )
1914-01-16
Tool for straightening pipes
FR443421A
(en )
1912-09-24
Improvements to metallurgical furnaces
FR453808A
(en )
1913-06-17
Oven for roasting ores
FR451163A
(en )
1913-04-12
Oven for roasting ores
FR449186A
(en )
1913-02-19
Oven for roasting ores
AU547812A
(en )
1913-07-15
Composition of matter for treating east iron and steel
CA155280A
(en )
1914-04-21
Method of hardening iron and steel
CH62787A
(en )
1913-12-16
Process and device for the deslagging of furnaces with beams
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
CH59007A
(en )
1913-04-16
Refractory lining for industrial furnaces
CH55783A
(en )
1912-09-16
Crucible furnace for hardening, inserting, annealing and preheating tools and other objects
CH59939A
(en )
1913-06-16
Process and high pressure furnace for direct iron and steel production
CH67012A
(en )
1914-11-02
Process for decarburizing metals
CH61744A
(en )
1913-10-16
Process for hardening metals
NL154C
(en )
1914-03-16
Iron tanning process
AT78480B
(en )
1919-09-25
Process and pan for deoxidizing iron and steel using calcium carbide.
CH71258A
(en )
1915-12-16
Process to improve the operation of electrically operated melting furnaces for steel and iron
CH64529A
(en )
1914-04-01
Method of cementing objects made of soft iron
CA149202A
(en )
1913-07-08
Iron and steel production
CH61889A
(en )
1913-10-16
Method and machine for closing vessels