FR507831A
(en )
1920-09-24
Process for the production of decorations imitating inlays
CH76231A
(en )
1918-04-16
Process for the production of decorations imitating inlays
CH75800A
(en )
1918-02-16
Process for the production of decorations imitating inlays
FR497983A
(en )
1919-12-23
Process for obtaining decorative surfaces
FR487869A
(en )
1918-08-02
Process for the production of artificial leather
FR22213E
(en )
1921-05-24
Process for the production of enamels
FR486195A
(en )
1918-03-14
Process for obtaining protein materials from plants
FR488359A
(en )
1918-09-17
Enfleurage process
FR508167A
(en )
1920-10-04
Process for the production of combustible steam
FR533157A
(en )
1922-02-23
Process for the production of views in natural colors
CH75422A
(en )
1917-07-16
Process for the production of glazed asbestos-cement articles
FR494625A
(en )
1919-09-13
Process for obtaining cyanides
FR487830A
(en )
1918-07-30
Process for the production of alcohol
CH75963A
(en )
1919-08-01
Process for the production of waterproof shoes
FR22292E
(en )
1921-05-25
Process for the production of synthetic alcohol
FR22275E
(en )
1921-05-25
Process for the production of synthetic alcohol
FR515075A
(en )
1921-03-24
Process for the treatment of ash by fusion
FR486847A
(en )
1918-05-14
Process for obtaining desiccated potatoes
FR514560A
(en )
1921-03-14
Process for the production of urea
FR495795A
(en )
1919-10-17
Improvements to the hydrocarbon production process
CH75774A
(en )
1918-02-01
process for the production of a soap preparation
FR501127A
(en )
1920-04-02
Process for the electrolysis of aqueous solutions
FR493093A
(en )
1919-07-30
Process for the production of alkali arsenates
FR514956A
(en )
1921-03-22
Process for the production of caramel
FR489565A
(en )
1919-02-20
Manufacturing process for artificial ultramarines