FR519528A
(en )
1921-06-11
Process for the production of economical soaps
CH79074A
(en )
1919-02-01
Dial and process for its manufacture
FR504115A
(en )
1920-06-25
Improvements to ramps and the like and process for their manufacture
FR495578A
(en )
1919-10-11
Process for the manufacture of superphosphates
FR513143A
(en )
1921-02-08
Manufacturing process of hinges
FR513671A
(en )
1921-02-21
Process for the production of ferro-tungsten
FR494393A
(en )
1919-09-06
Chain-gimp manufacturing process
FR489108A
(en )
1918-12-20
Process and installation for the manufacture of briquettes
FR489919A
(en )
1919-03-22
Shoe fitting and method for its manufacture
CH78646A
(en )
1918-08-16
Process for the manufacture of briquettes
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
CH78424A
(en )
1918-07-16
Process and installation for the manufacture of formaldehyde
FR496756A
(en )
1919-11-15
Explosive and process for its manufacture
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
CH77114A
(en )
1918-03-01
Cigar and process for its manufacture
CH82096A
(en )
1919-09-01
Belt for transmissions and method for its manufacture
FR489033A
(en )
1918-12-07
Production process for ethers-salts
FR533176A
(en )
1922-02-23
Process for the manufacture of cokemetallurgical
FR507259A
(en )
1920-09-09
Manufacturing process for porous materials
FR501461A
(en )
1920-04-15
Metallurgical process
FR516186A
(en )
1921-04-14
Advanced process for the manufacture of zinc or zinc and lead
CH78065A
(en )
1918-06-17
Chipboard and process for its manufacture
FR506796A
(en )
1920-08-30
Electrodes and manufacturing process
FR518553A
(en )
1921-05-27
Process for the manufacture of artificial resins
FR498438A
(en )
1920-01-10
Process for the dehydration of tar