CH70544A
(en )
1915-10-01
Process for recovering sulfate and sulfur from thiosulfate
CH59844A
(en )
1913-06-02
Process for removing hydrogen sulfide from gases
CH72155A
(en )
1916-04-01
Process for the production of briquettes from urban waste and bones
CH58865A
(en )
1913-04-01
Process for removing carbon disulfide from gases
CH71328A
(en )
1915-12-16
Process for the direct production of ammonium sulfate from calcium cyanamide and gypsum
CH66728A
(en )
1914-10-01
Process for the extraction of ammonium sulphate from calcium carbonate sludge containing ammonium sulphate
AT57796B
(en )
1913-02-25
Process and apparatus for the direct extraction of tar and ammonium sulfate from distillation gases.
CH69158A
(en )
1915-06-01
Steel heald and method of making the same
CH69630A
(en )
1915-07-16
Process for the production of ammonia from its elements
CH69629A
(en )
1915-07-16
Process for the production of ammonia from its elements
CH63822A
(en )
1914-02-16
Process for separating water from suspensions and emulsions
CH65129A
(en )
1914-05-16
Process for the production of nitrogen oxide (NO) from ammonia
CH67251A
(en )
1914-11-16
Process for the preparation of nitric acid from nitrates and sulfuric acid
CH64477A
(en )
1914-04-01
Process for purifying hydrogen
CH59149A
(en )
1913-04-16
Process for separating cyanamide from calcium cyanamide
CH65355A
(en )
1914-06-01
Process for removing oxygen from water for domestic and commercial use
CH67214A
(en )
1914-11-16
Process for the utilization of flue gases
AT88461B
(en )
1922-05-26
Process for the production of sulfur oxides from sulfates, in particular calcium sulfate.
CH71188A
(en )
1915-12-01
Process for the production of chlorine and sulphate from sodium chloride
ES59976A1
(en )
1915-04-16
Procedure that introduces improvements in the manufacture of sulfur from sulfurous minerals and gases containing sulfur anhydrous.
CH58635A
(en )
1913-03-17
Method and device for the production of silk and other fine fabrics
CH68992A
(en )
1915-05-17
Process for the preparation of protocatechialdehyde from piperonal
CH42330A
(en )
1909-01-16
Process for the oxidation of hydrogen sulfide to sulfur
CH69818A
(en )
1915-07-16
Process for the production of conical springs from steel strips
CH58673A
(en )
1913-03-17
Process for the preparation of erythrene from α-methyltrimethyleneimine