CH79066A
(en )
1918-10-01
Process for the extraction of oil
CH81445A
(en )
1919-06-16
Process for the evaporation of liquids
CH81398A
(en )
1919-11-17
Process for the extraction of minerals
CH81561A
(en )
1919-11-17
Process for the preparation of 4-chloro-7-methoxyisatin
CH80637A
(en )
1919-08-16
Process for the preparation of 4-7-dimethylisatin
CH80638A
(en )
1919-08-01
Process for the preparation of 5-7-dimethylisatin
CH80641A
(en )
1919-08-16
Process for the preparation of 7-methylisatin
CH81551A
(en )
1919-11-01
Process for the preparation of 4-chloro-7-methylisatin
CH81552A
(en )
1919-11-01
Process for the preparation of 4-methyl-7-chloroisatin
CH81554A
(en )
1919-11-17
Process for the preparation of 5-methyl-7-chloroisatin
CH81555A
(en )
1919-11-17
Process for the preparation of 5-chloro-7-methylisatin
CH81559A
(en )
1919-11-17
Process for the preparation of 4-6-dichloroisatin
CH81558A
(en )
1919-12-01
Process for the preparation of 4-7-dichloroisatin
CH80633A
(en )
1919-08-01
Process for the preparation of 7-chloroisatin
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH80401A
(en )
1919-07-16
Process for drying potatoes
CH79146A
(en )
1918-10-01
Method of making briquettes
CH81780A
(en )
1919-07-16
Process for cleaning machine oils
CH82981A
(en )
1919-11-01
Process for the production of pulp
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH78789A
(en )
1918-09-02
Electro-osmotic drainage method
CH80636A
(en )
1919-08-16
Process for the preparation of methyl pseudoisatin
AT88456B
(en )
1922-05-10
Process for the production of perylene.
CH79578A
(en )
1918-12-02
Process for the isolation of hyoscyamine