AT87482B
(en )
1922-02-25
Process for the production of asbestos slate and the like.
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH79651A
(en )
1918-12-16
Facility for the production of calcium carbide
AT96138B
(en )
1924-02-25
Process for the production of fuel.
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
CH82936A
(en )
1919-11-01
Key and method of making the same
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH72366A
(en )
1916-10-16
Process for the production of tops
AT88419B
(en )
1922-05-10
Process for the production of gall soaps and detergents.
AT91345B
(en )
1923-02-26
Process for the production of iron leather.
CH76592A
(en )
1918-01-16
Process for the production of fittings
AT87474B
(en )
1922-02-25
Process for the production of mercury oxide.
AT88456B
(en )
1922-05-10
Process for the production of perylene.
CH80641A
(en )
1919-08-16
Process for the preparation of 7-methylisatin
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
CH81561A
(en )
1919-11-17
Process for the preparation of 4-chloro-7-methoxyisatin
CH81558A
(en )
1919-12-01
Process for the preparation of 4-7-dichloroisatin
CH81552A
(en )
1919-11-01
Process for the preparation of 4-methyl-7-chloroisatin
CH81551A
(en )
1919-11-01
Process for the preparation of 4-chloro-7-methylisatin
CH80638A
(en )
1919-08-01
Process for the preparation of 5-7-dimethylisatin