FR519528A
(en )
1921-06-11
Process for the production of economical soaps
CH78424A
(en )
1918-07-16
Process and installation for the manufacture of formaldehyde
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
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
FR489919A
(en )
1919-03-22
Shoe fitting and method for its manufacture
FR513671A
(en )
1921-02-21
Process for the production of ferro-tungsten
FR489108A
(en )
1918-12-20
Process and installation for the manufacture of briquettes
FR513143A
(en )
1921-02-08
Manufacturing process of hinges
FR517801A
(en )
1921-05-12
Process for the manufacture of corks
FR516186A
(en )
1921-04-14
Advanced process for the manufacture of zinc or zinc and lead
FR518553A
(en )
1921-05-27
Process for the manufacture of artificial resins
CH78646A
(en )
1918-08-16
Process for the manufacture of briquettes
CH79074A
(en )
1919-02-01
Dial and process for its manufacture
FR533176A
(en )
1922-02-23
Process for the manufacture of cokemetallurgical
FR526968A
(en )
1921-10-17
Process for the manufacture of resin-like substances
FR494393A
(en )
1919-09-06
Chain-gimp manufacturing process
FR497467A
(en )
1919-12-06
Process for the manufacture of methyl chloroformate
FR494921A
(en )
1919-09-24
Bolt manufacturing process
FR489233A
(en )
1919-01-06
Process for the production of artificial butter
FR506281A
(en )
1920-08-18
Continuous manufacturing process for acetone
FR488454A
(en )
1918-10-15
Manufacturing process of tires for tires
FR499005A
(en )
1920-01-29
Process and machine for the manufacture of return shoes
FR493406A
(en )
1919-08-08
Martin steel manufacturing process
FR488507A
(en )
1918-10-18
Process for the manufacture of ingot molds