CH57977A
(en )
1913-02-17
Process for the electrolytic production of ammonium nitrate from hydrous nitric acid
CH67430A
(en )
1914-12-01
Method for the concentration of dilute nitric acid
CH67251A
(en )
1914-11-16
Process for the preparation of nitric acid from nitrates and sulfuric acid
CH57050A
(en )
1912-12-02
Process for the preparation of nitric acid
CH56595A
(en )
1912-11-16
Process for the preparation of concentrated nitric acid
CH57534A
(en )
1913-01-16
Process for the preparation of sodium nitrite from nitrous, oxygen-containing gases
CH57691A
(en )
1913-02-01
Process for the production of hydrogen from gas mixtures containing hydrogen
CH56594A
(en )
1912-11-16
Process for the production of hydrogen from gas mixtures containing hydrogen
CH72727A
(en )
1916-07-01
Process for the production of oxalic acid
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH73573A
(en )
1916-10-16
Method of concentrating nitric acid
CH50538A
(en )
1911-06-01
Process for the production of nitric acid from nitric oxide developed when nitrites are converted into nitrates by means of nitric acid
CH78109A
(en )
1918-10-16
Process for the production of ethyl alcohol from acetaldehyde and hydrogen
CH79613A
(en )
1918-12-16
Process for the production of components from nailable and drilled concrete
CH69629A
(en )
1915-07-16
Process for the production of ammonia from its elements
CH69630A
(en )
1915-07-16
Process for the production of ammonia from its elements
CH51112A
(en )
1911-07-17
Process for removing nitrous acid from solutions
CH72256A
(en )
1916-04-17
Process for the production of briquettes from waste materials that can be used as fuel
AT91490B
(en )
1923-02-26
Method of manufacturing frames shaped by bending.
CH57047A
(en )
1912-12-02
Process for the electrolytic treatment of nitric acid
CH68744A
(en )
1915-04-16
Process for the production of carbonic acid baths
CH55537A
(en )
1912-08-16
Process for the preparation of pure nitric oxide
CH59410A
(en )
1913-05-02
Process for the production of nitrogen oxides
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH54331A
(en )
1912-05-17
Process for the production of tubes from low-smoke gunpowder