CH68830A
(en )
1915-05-01
Process for the production of nitrogen oxides by oxidation of ammonia by means of air in the presence of catalysts
CH66430A
(en )
1914-09-16
Device for drying and purifying air
CH69950A
(en )
1915-08-02
Process for the production of nitrogen oxides by the catalytic oxidation of ammonia
CH57767A
(en )
1913-02-01
Process for extracting oxygen and nitrogen from air
CH65127A
(en )
1914-05-16
Apparatus for the production of nitrogen oxides
CH69951A
(en )
1915-08-02
Process for the production of nitrogen oxides by the catalytic oxidation of ammonia
CH72690A
(en )
1916-06-16
Process for the production of nitrogen oxides by the catalytic oxidation of ammonia
CH71327A
(en )
1915-12-16
Process for the production of cyanides from carbides and nitrogen
CH65129A
(en )
1914-05-16
Process for the production of nitrogen oxide (NO) from ammonia
CH31189A
(en )
1905-03-15
Apparatus for the production of nitric acid, respectively. Nitrogen oxide from a mixture of oxygen and nitrogen
CH73378A
(en )
1916-10-02
Process for obtaining nitrogen from air
AT80080B
(en )
1920-02-25
Device for separating dust from air and gases Device for separating dust from air and gases. n.
CH42511A
(en )
1909-02-01
Process for the preparation of pure nitric acid from nitrous gases diluted with air
CH74527A
(en )
1917-03-01
Method and device for the continuous production of nitrogen compounds from metal carbides
CH54320A
(en )
1912-05-17
Process for the preparation of nitrogen-oxygen compounds from ammonia and air by means of a contact substance
CH53772A
(en )
1912-04-01
Method and device for the production of nitrogen oxides from nitrogen-oxygen mixtures
CH37037A
(en )
1907-04-15
Apparatus for the production of nitric acid or nitrogen oxide from a mixture of oxygen and nitrogen
CH38477A
(en )
1907-10-31
Device for the electrical production of nitrogen compounds from air and other gas mixtures containing nitrogen and oxygen
CH59410A
(en )
1913-05-02
Process for the production of nitrogen oxides
CH66501A
(en )
1914-09-16
Method and device for carrying out electroosmotic processes
AT191425B
(en )
1957-08-26
Process for the production of urea from ammonia and carbon dioxide
CH58635A
(en )
1913-03-17
Method and device for the production of silk and other fine fabrics
CH43629A
(en )
1909-05-17
Process for the production of nitric acid from a mixture of nitrogen dioxide with air
CH68323A
(en )
1915-03-01
Apparatus for the purification of gases and for the recovery of the dust carried along
CH76295A
(en )
1917-12-01
Process and device for the production of briquettes from peat and the like