CH81085A
(en )
1919-11-01
Process for generating heat
CH80530A
(en )
1919-07-16
Process for the electrical heating of ovens
CH79987A
(en )
1919-02-01
Method and device for the electrical heating of rivets
CH80928A
(en )
1919-04-16
Procedure for heating rooms
CH79491A
(en )
1918-12-02
Process for the production of copper oxide
CH79334A
(en )
1918-11-01
Device for electrical heating of ovens
CH81561A
(en )
1919-11-17
Process for the preparation of 4-chloro-7-methoxyisatin
CH80633A
(en )
1919-08-01
Process for the preparation of 7-chloroisatin
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
CH81558A
(en )
1919-12-01
Process for the preparation of 4-7-dichloroisatin
CH81559A
(en )
1919-11-17
Process for the preparation of 4-6-dichloroisatin
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH80635A
(en )
1919-09-01
Process for the preparation of ethyl pseudoisatin
AT88456B
(en )
1922-05-10
Process for the production of perylene.
CH78104A
(en )
1918-10-16
Process for the production of mercury oxide
CH75776A
(en )
1917-09-17
Process for the production of electrical insulating fittings
AT100191B
(en )
1925-06-10
Process for preparing gels.
CH80095A
(en )
1919-07-01
Process for the preparation of isatin