CH51112A
(en )
1911-07-17
Process for removing nitrous acid from solutions
CH57996A
(en )
1913-02-01
Process for removing salts from their aqueous solutions
CH60458A
(en )
1913-07-16
Process for removing soluble salts from glazes
CH53248A
(en )
1912-02-01
Process for obtaining common salt from solutions containing common salt
AT57722B
(en )
1913-02-25
Process for the production of caramel from carbohydrates.
CH58865A
(en )
1913-04-01
Process for removing carbon disulfide from gases
AT63610B
(en )
1914-02-25
Process for the production of hydrastinine from berberine.
CH52438A
(en )
1911-11-16
Process for the production of shaped pieces from cellulose acetate
CH58610A
(en )
1913-03-17
Process for removing glass residues from draw containers
CH59844A
(en )
1913-06-02
Process for removing hydrogen sulfide from gases
CH69337A
(en )
1915-06-16
Process for the production of methyl alcohol from chloromethane
AT57727B
(en )
1913-02-25
Process for the extraction of the nitrogenous components from waste water.
CH48472A
(en )
1910-10-17
Process for the preparation of concentrated formic acid from sodium formate
CH52437A
(en )
1911-11-16
Process for the production of layers from acetyl cellulose
CH53244A
(en )
1912-02-01
Process for the production of concentrated nitric acid from dilute, aqueous nitric acid
CH53245A
(en )
1912-02-01
Process for the production of concentrated nitric acid from dilute, aqueous nitric acid
CH50536A
(en )
1911-06-01
Process for the manufacture of filters
CH68285A
(en )
1915-03-01
Process for the production of hollow components from concrete
CH54307A
(en )
1912-05-01
Procedure for removing rust stains
CH73378A
(en )
1916-10-02
Process for obtaining nitrogen from air
CH73102A
(en )
1916-08-16
Process for the recovery of concentrated acetic acid from aqueous acetic acid
CH71193A
(en )
1915-12-01
Process for removing formic acid and other impurities from acetic acid
CH63362A
(en )
1914-02-02
Process for the production of shaped pieces from common salt
CH75154A
(en )
1917-06-01
Process for the production of shaped pieces from fodder
CH63328A
(en )
1914-01-16
Process for the production of artificial structures from copper oxide ammonia cellulose solution