FR677621A
(en )
1930-03-12
Improvements in processes for obtaining zirconium oxides from ores of this metal
FR702398A
(en )
1931-04-07
Process for the preparation of oxides of alkaline earth metals
FR589048A
(en )
1925-05-22
Improvements in the electrolysis of materials in the molten state
FR702415A
(en )
1931-04-08
Improvements to processes for precipitating azides or azothydrides from heavy metals and more especially silver and lead
FR821978A
(en )
1937-12-17
Process for the metallurgical treatment of strongly zinc-bearing iron ores
FR837126A
(en )
1939-02-02
Improvements to metals and metal alloys and to processes to remove surface oxides from them
FR676090A
(en )
1930-02-18
Process for obtaining parts molded from metal oxides
FR696401A
(en )
1930-12-30
Improvements in processes for the treatment of nitrogen oxides
FR723299A
(en )
1932-04-06
Process for the reprocessing of oxide coatings produced on aluminum or its alloys
FR646483A
(en )
1928-11-12
Process for making metal sheets and strips
FR667295A
(en )
1929-10-15
Process for the purification of foundry metals
FR579157A
(en )
1924-10-11
Process for refining alloys and metals
FR48717E
(en )
1938-06-21
Process for the reduction of oxides
FR630630A
(en )
1927-12-06
Process for attacking titaniferous ores
FR809936A
(en )
1937-03-12
Metallurgical process for the enrichment of ores too loaded with iron oxides
FR554592A
(en )
1923-06-13
Improvements in furnaces for the fusion of stereotyped metal and analogous metals
FR680317A
(en )
1930-04-26
Process for extracting heavy metals from the complex salt of sodium glutamate and a salt of a heavy metal
FR701237A
(en )
1931-03-13
Improvements to furnaces for the heat treatment of metals
FR622308A
(en )
1927-05-28
Method and apparatus for the reduction of metal oxides
FR838859A
(en )
1939-03-17
Process for treating metals and metal alloys at the time of casting
FR30627E
(en )
1926-07-20
Process for melting, refining and purifying magnesium for the use of this metal in foundry
FR606048A
(en )
1926-06-05
Improvements in the treatment of impure metals and impure molten metal masses
FR765642A
(en )
1934-06-13
Process for the purification of metals and metal alloys
FR648097A
(en )
1928-12-05
Metal scraping teeth for sulphurous ore roasting furnaces
FR774551A
(en )
1934-12-08
Improvements to molten metal containers