FR854659A
(en )
1940-04-22
Advanced process for the preparation of finely reduced oxides
FR30527E
(en )
1926-07-19
Process for the manufacture of iron oxides intended for polishing and the preparation of paints
FR593478A
(en )
1925-08-24
Process for the manufacture of iron oxides intended for polishing and the preparation of paints
FR551784A
(en )
1923-04-13
Process for the treatment of silver-gold antimony ores
FR570205A
(en )
1924-04-25
Process for preparing iron oxide for the manufacture of colors and for polishing glass
FR597727A
(en )
1925-11-27
Process for the production of highly divided oxides or mixtures of oxides
FR39628E
(en )
1932-01-22
Process for the activation of proteases
FR612345A
(en )
1926-10-21
Process for the manufacture of lead oxide and carbonate
FR512736A
(en )
1921-01-29
Improvements in the manufacture of metal discs as used for disc wheels
FR572524A
(en )
1924-06-07
Process for the enrichment of colithic ores
FR629508A
(en )
1927-11-12
Process for the manufacture of martin-siemens steel
FR600280A
(en )
1926-02-03
Process for the manufacture of acetic anhydride
FR550720A
(en )
1923-03-16
Process for the manufacture of ethylene and derived products
FR815309A
(en )
1937-07-09
Process for the oxidation of nitrogen oxides
FR846574A
(en )
1939-09-20
Process for the production of olefinic oxides
FR524075A
(en )
1921-08-30
Process and furnace for the reduction of metal oxides (ores)
FR618123A
(en )
1927-03-03
Crucible for the production of lead oxide
FR621109A
(en )
1927-05-05
Improvements to the low-hearth process for the manufacture of steel or pure iron
FR558240A
(en )
1923-08-23
Process for the preparation of white pigments based on titanium oxide
FR557999A
(en )
1923-08-20
Furnace for the continuous industrial manufacture of lead oxides
FR506854A
(en )
1920-08-31
Process for the economical manufacture of steel in the martin furnace
FR594152A
(en )
1925-09-08
Process for the manufacture of alkalicellulose
FR566903A
(en )
1924-02-22
Process for the preparation of chlorinated amines
FR32190E
(en )
1927-09-12
Process for the direct absorption of nitrogen oxides
FR31301E
(en )
1927-01-28
Process for the direct absorption of nitrogen oxides