FR747868A
(en )
1933-06-24
Processes and installation for the manufacture and treatment of metals such as onte, steel, etc.
FR842931A
(en )
1939-06-21
Steel for the manufacture of transmission parts and workpieces, wear-resistant
FR789862A
(en )
1935-11-07
Mixing agents for lubricants, and manufacturing processes
FR799842A
(en )
1936-06-20
Steel case-hardening process
FR815521A
(en )
1937-07-13
Process improvements for metal rolling
FR774981A
(en )
1934-12-17
Improvements to processes for the manufacture of metal tubes
FR825862A
(en )
1938-03-16
Process for manufacturing hard metal bushes such as steel
FR812018A
(en )
1937-04-28
Process for manufacturing blades from sheet steel or other metal
SU44260A1
(en )
1935-09-30
The method of casting metallurgical slag intended for further processing
FR816182A
(en )
1937-08-02
Improvements to metal cans or stagnants, and process for the manufacture thereof
FR716535A
(en )
1931-12-22
Process for the manufacture and processing of steel and alloys of iron and steel
DK49258C
(en )
1934-09-10
Method for the manufacture of tubular articles of iron, steel or other metal alloys or of metal.
FR799766A
(en )
1936-06-19
Process for the treatment of steel
AT148704B
(en )
1937-02-25
Process for the deformation of iron-carbon alloys such as pig iron, cast iron or malleable cast iron.
FR816861A
(en )
1937-08-19
Method and apparatus for the manufacture of articles such as: wash basins, sinks, bowls, etc., of sheet metal by forging
CH167563A
(en )
1934-02-28
A process for the production of oxygen-poor steel.
FR761194A
(en )
1934-03-13
Process for the production of pig iron from scrap steel
CH161628A
(en )
1933-05-15
Process for the production of welded structures that contain wrought iron and cast components.
FR43855E
(en )
1934-09-07
Process for the cementation of iron, steel and their alloys
FR765642A
(en )
1934-06-13
Process for the purification of metals and metal alloys
FR799996A
(en )
1936-06-24
Improvements to Thomas processes for steel fabrication
FR656306A
(en )
1929-05-06
Process for the deoxidation of oxidized metal surfaces, as well as the oxidation preservation of metal surfaces
FR717664A
(en )
1932-01-12
Process for the manufacture of articles, for example metal sheets, tapes or wires, from austenitic, chemically neutral, chromium-nickel steel alloys
FR718131A
(en )
1932-01-19
Process for the cementation of iron, steel and their alloys
FR746842A
(en )
1933-06-07
Manufacturing process of tubular articles of iron, steel or metal alloys