CH56308A
(en )
1912-11-01
Process for the production of quartz hollow bodies
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH57546A
(en )
1913-01-16
Process for the production of size
CH57776A
(en )
1913-02-01
Process for the production of printing forms
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH51815A
(en )
1911-09-16
Process for the manufacture of shaped articles
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH57979A
(en )
1913-02-17
Process for the production of hydrogen
CH72174A
(en )
1916-04-17
Process for the production of enamels
CH78372A
(en )
1918-07-16
Process for the manufacture of stamps
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH55865A
(en )
1912-09-16
Process for the production of rollable plaster bases
CH52851A
(en )
1912-01-02
Process for making clear quartz articles
CH52852A
(en )
1912-01-02
Process for making clear quartz articles
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH52190A
(en )
1911-11-01
Process for the production of oxygen baths
CH52509A
(en )
Process for the production of oxygen baths
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
CH60359A
(en )
1913-07-16
Process for the production of posters
CH63365A
(en )
1914-01-16
Process for the production of nitrocellulose
CH57292A
(en )
1913-01-02
Process for the production of bodies for sulphurizing
CH55315A
(en )
1912-08-01
Process for the production of road surfaces