FR846951A
(en )
1939-09-28
Process for the preparation of foundry molds and device for carrying out the process
FR707676A
(en )
1931-07-10
Process for the agglomeration and the briquetting of dust from the top
FR839025A
(en )
1939-03-22
Process for agglomeration of fuels and apparatus for the application of this process
FR844368A
(en )
1939-07-24
Methods and apparatus for improving or transforming ores into metal
FR707139A
(en )
1931-07-03
Process and device for the purification and dedusting of industrial gases
FR775099A
(en )
1934-12-19
Process for agglomeration of fuels and apparatus for applying the process
FR837049A
(en )
1939-02-01
Process for the agglomeration of coals
FR39628E
(en )
1932-01-22
Process for the activation of proteases
FR601376A
(en )
1926-03-01
Method and apparatus for the enrichment of ores and coals
FR715893A
(en )
1931-12-10
Process for the production of beta-chloropropionic esters
FR714459A
(en )
1931-11-14
Process for the production of metal sponge
FR714475A
(en )
1931-11-14
Process and device for the manufacture of acetaldehyde
FR727534A
(en )
1932-06-20
Improvements to processes and apparatus for producing electrical oscillations
FR689386A
(en )
1930-09-05
Process for the hydrogenation of coals
FR736628A
(en )
1932-11-25
Improvements to processes and apparatus for metal refining
FR631004A
(en )
1927-12-13
Process for briquetting the dust escaping from the blast furnace top
FR721457A
(en )
1932-03-03
Process for purification and improvement of air
FR572524A
(en )
1924-06-07
Process for the enrichment of colithic ores
FR704338A
(en )
1931-05-18
Process for the removal of chlorine from solutions and solutions thus obtained
FR712363A
(en )
1931-10-01
Process for the extraction of iron and metals of the iron group
FR557162A
(en )
1923-08-04
Process for the agglomeration of ores and other similar materials
FR612113A
(en )
1926-10-18
Process for the agglomeration of coals and other pulverulent materials
FR711984A
(en )
1931-09-22
Advanced process for the enrichment of minerals
FR714806A
(en )
1931-11-20
Process for the production of shock and impact resistant plasters
FR831664A
(en )
1938-09-12
Process and device for the manufacture of primary oxyalkylamines