CH42217A
(en )
1909-01-16
Process for improving steel and its alloys
FR416534A
(en )
1910-10-22
Process for melting and casting magnesium and its alloys
FR386786A
(en )
1908-06-22
Steel refining process
FR9366E
(en )
1908-10-19
Steel refining process
FR388822A
(en )
1908-08-24
Metallurgical process and apparatus more especially specific to the production of steel
FR381091A
(en )
1907-12-27
Process for the production of steel alloys
FR387314A
(en )
1908-07-07
Process for hardening and annealing steel
FR372503A
(en )
1907-04-10
Process for surface annealing and carburizing steel and steel alloys
FR384077A
(en )
1908-03-28
Process and furnace for the manufacture of ingot iron and steel
CH40343A
(en )
1908-07-01
Small mass production process for steel
FR395409A
(en )
1909-02-27
Process for the covering of iron and steel articles in order to preserve them from rust
FR10770E
(en )
1909-09-28
Process for casting and casting of steel
FR401541A
(en )
1909-09-01
Process for casting and casting of steel
FR360033A
(en )
1906-04-11
Steel making process
FR362371A
(en )
1906-06-21
Method and device for the manufacture of steel
FR403033A
(en )
1909-10-23
Advanced process for separating and refining metals
FR423534A
(en )
1911-04-20
Steel making method
FR395131A
(en )
1909-02-11
Method and apparatus for manufacturing steel
FR387284A
(en )
1908-07-06
Process of reduction of ores, especially iron ores
FR373972A
(en )
1907-05-31
Method and apparatus for fabricating composite metal parts
FR394667A
(en )
1909-01-29
Process for the treatment of iron and steel
FR401136A
(en )
1909-08-19
Refining process for metals and particularly iron
FR387207A
(en )
1908-07-03
Process for treating molten iron or steel, or iron ore
FR383461A
(en )
1908-03-10
Process and apparatus for the manufacture of steel and the like
CH44253A
(en )
1909-07-16
Process for the case-hardening of iron, mild steel and cast or cast steel