FR520714A
(en )
1921-06-29
Process for the production of air-free masses or solutions
CH78793A
(en )
1919-02-01
Process for obtaining levoglucosan
FR497983A
(en )
1919-12-23
Process for obtaining decorative surfaces
FR521891A
(en )
1921-07-21
Process for the preparation of pyridic bases
FR494625A
(en )
1919-09-13
Process for obtaining cyanides
FR519211A
(en )
1921-06-07
Purification process for crude anthracene
FR488359A
(en )
1918-09-17
Enfleurage process
FR486847A
(en )
1918-05-14
Process for obtaining desiccated potatoes
FR519210A
(en )
1921-06-07
Anthraquinone purification process
FR487886A
(en )
1918-08-02
Construction process for timber structures
FR486195A
(en )
1918-03-14
Process for obtaining protein materials from plants
FR518664A
(en )
1921-05-28
Process for obtaining fibrous materials
FR493339A
(en )
1919-08-06
Continuous rectification process for benzols
FR518087A
(en )
1921-05-19
Process for obtaining acetaldehyde
FR518086A
(en )
1921-05-19
Process for obtaining acetaldehyde
FR22275E
(en )
1921-05-25
Process for the production of synthetic alcohol
FR22292E
(en )
1921-05-25
Process for the production of synthetic alcohol
FR487830A
(en )
1918-07-30
Process for the production of alcohol
FR493093A
(en )
1919-07-30
Process for the production of alkali arsenates
FR491711A
(en )
1919-06-16
Improved process for obtaining cottonseed oil
FR495795A
(en )
1919-10-17
Improvements to the hydrocarbon production process
FR521141A
(en )
1921-07-07
Process for removing the ability to quickly ignite celluloid
FR486135A
(en )
1918-03-12
Process of squeezing peat by compression
FR476390A
(en )
1915-07-29
Process for removing or obtaining argon
FR494228A
(en )
1919-09-03
Process for obtaining sulfur