FR501499A
(en )
1920-04-15
Continuous process for the manufacture of ethers
FR519528A
(en )
1921-06-11
Process for the production of economical soaps
CH81099A
(en )
1919-05-01
Process for the production of briquettes from strawberries
FR495578A
(en )
1919-10-11
Process for the manufacture of superphosphates
FR513671A
(en )
1921-02-21
Process for the production of ferro-tungsten
CH78646A
(en )
1918-08-16
Process for the manufacture of briquettes
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
FR517872A
(en )
1921-05-14
Process for the production of bleaching charcoal
FR489233A
(en )
1919-01-06
Process for the production of artificial butter
FR489033A
(en )
1918-12-07
Production process for ethers-salts
FR498438A
(en )
1920-01-10
Process for the dehydration of tar
FR526968A
(en )
1921-10-17
Process for the manufacture of resin-like substances
FR489108A
(en )
1918-12-20
Process and installation for the manufacture of briquettes
FR497467A
(en )
1919-12-06
Process for the manufacture of methyl chloroformate
FR511913A
(en )
1921-01-07
Process for the manufacture of strawberries
FR533176A
(en )
1922-02-23
Process for the manufacture of cokemetallurgical
FR491829A
(en )
1919-06-19
Process for the production of pulp
FR492393A
(en )
1919-07-05
Process for the manufacture of briquettes from garbage
FR501291A
(en )
1920-04-08
Process for the production of briquettes from strawberries and resulting products
FR518553A
(en )
1921-05-27
Process for the manufacture of artificial resins
CH81477A
(en )
1919-06-16
Process for the electrolytic production of magnesium
FR519513A
(en )
1921-06-11
Process for the production of petroleum jelly
FR491238A
(en )
1919-05-27
Lead refining process
FR494393A
(en )
1919-09-06
Chain-gimp manufacturing process