FR501499A
(en )
1920-04-15
Continuous process for the manufacture of ethers
FR519528A
(en )
1921-06-11
Process for the production of economical soaps
CH78646A
(en )
1918-08-16
Process for the manufacture of briquettes
FR495578A
(en )
1919-10-11
Process for the manufacture of superphosphates
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
FR513671A
(en )
1921-02-21
Process for the production of ferro-tungsten
CH81099A
(en )
1919-05-01
Process for the production of briquettes from strawberries
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
FR489108A
(en )
1918-12-20
Process and installation for the manufacture of briquettes
FR526968A
(en )
1921-10-17
Process for the manufacture of resin-like substances
FR533176A
(en )
1922-02-23
Process for the manufacture of cokemetallurgical
FR518553A
(en )
1921-05-27
Process for the manufacture of artificial resins
FR489233A
(en )
1919-01-06
Process for the production of artificial butter
FR498438A
(en )
1920-01-10
Process for the dehydration of tar
FR517872A
(en )
1921-05-14
Process for the production of bleaching charcoal
FR516629A
(en )
1921-04-23
Process for the manufacture of perborates
FR488507A
(en )
1918-10-18
Process for the manufacture of ingot molds
FR489033A
(en )
1918-12-07
Production process for ethers-salts
FR494393A
(en )
1919-09-06
Chain-gimp manufacturing process
FR501461A
(en )
1920-04-15
Metallurgical process
FR489919A
(en )
1919-03-22
Shoe fitting and method for its manufacture
FR497467A
(en )
1919-12-06
Process for the manufacture of methyl chloroformate
FR497513A
(en )
1919-12-09
Process for the manufacture of thermal accumulators
FR538403A
(en )
1922-06-09
PROCESS FOR THE MANUFACTURE OF FERRUGINE LEATHER
FR499005A
(en )
1920-01-29
Process and machine for the manufacture of return shoes