CH50102A
(en )
1911-04-17
Process for preparing cements for use in the cementation of iron and steel
CH50103A
(en )
1911-04-17
Advanced cement for use in the case hardening of iron and steel
FR422493A
(en )
1911-03-22
Preparation process for iron and steel
FR449212A
(en )
1913-02-20
Method and apparatus for the production of iron and steel
FR436145A
(en )
1912-03-19
Process for preparing waste wood of all kinds for the cementation of iron and steel
FR418851A
(en )
1910-12-21
Process for the manufacture of iron and steel, and furnaces for the practice
FR394667A
(en )
1909-01-29
Process for the treatment of iron and steel
FR481705A
(en )
1917-01-09
Electrolytic process for removing oxide or rust from the surface of iron or steel objects
FR422545A
(en )
1911-03-23
Process for transforming iron and mild and extra-soft steel into very hard steel
FR464717A
(en )
1914-03-28
Process for the manufacture of a metal combining the properties of iron and steel
FR406441A
(en )
1910-01-29
Process for the enrichment of oolitic iron ores and the like
FR401105A
(en )
1909-08-19
Process for the steeling of iron, mild steel, cast iron and cast steel
FR444340A
(en )
1912-10-15
Composition for processing molten iron and steel
FR17512E
(en )
1913-10-02
Process of carburizing iron and steel
FR453542A
(en )
1913-06-10
Process of carburizing iron and steel
FR479370A
(en )
1916-03-17
Process for the surface oxidation of articles of iron, steel and the like
FR434443A
(en )
1912-02-02
New process for the case-hardening of objects made of iron or steel or formed from steel alloys
FR384077A
(en )
1908-03-28
Process and furnace for the manufacture of ingot iron and steel
FR415985A
(en )
1910-10-08
Process for carburizing articles of iron and steel, or steel alloys
CH58727A
(en )
1913-04-01
New process for the case-hardening of objects made of iron or steel or formed from steel alloys
FR479927A
(en )
1916-05-25
Method and apparatus for casting steel and forming ingots
FR514331A
(en )
1921-03-08
Manufacturing process for molten iron and steel
FR514311A
(en )
1921-03-08
Process for casting steel tools for working iron and other hard materials
FR392341A
(en )
1908-11-24
Process for the preparation of cement using liquid blast furnace slag or its equivalent
FR352778A
(en )
1905-08-21
Method and apparatus for the manufacture of cast iron, steel and special cast irons