CH124527A
(en )
1928-03-16
Process for the preparation of 1-aminoanthraquinone-2-thiohydrin.
AT96140B
(en )
1924-02-25
Process for the preparation of ammonia from its elements.
AT80091B
(en )
1920-02-25
Process for the preparation of caramel. Process for the preparation of caramel.
CH86573A
(en )
1920-09-01
Process for the production of gravure forms.
AT91009B
(en )
1923-01-25
Process for the preparation of perborate by electrolysis.
AT112340B
(en )
1929-02-25
Process for the preparation of organic antimony compounds.
CH111785A
(en )
1925-09-16
Process for the preparation of hydrogen cyanide.
CH81554A
(en )
1919-11-17
Process for the preparation of 5-methyl-7-chloroisatin
CH80637A
(en )
1919-08-16
Process for the preparation of 4-7-dimethylisatin
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
CH80638A
(en )
1919-08-01
Process for the preparation of 5-7-dimethylisatin
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
CH81561A
(en )
1919-11-17
Process for the preparation of 4-chloro-7-methoxyisatin
CH80641A
(en )
1919-08-16
Process for the preparation of 7-methylisatin
CH80633A
(en )
1919-08-01
Process for the preparation of 7-chloroisatin
CH80966A
(en )
1919-04-16
Process for the preparation of 2-thienylquinoline-4-carboxylic acid
DK30619C
(en )
1922-11-06
Procedure for the Production of Ammonia.
CH118962A
(en )
1927-02-16
Process for the continuous preparation of nitrite-free ammonium nitrate.
CH82982A
(en )
1919-11-01
Process for the extraction of soluble components from cellulose-containing substances
CH79339A
(en )
1918-11-01
Process for the preparation of acetaldehyde from acetylene
CH80636A
(en )
1919-08-16
Process for the preparation of methyl pseudoisatin
AT88457B
(en )
1922-05-26
Process for the preparation of derivatives of bromoacylated ureas.