CH76292A
(en )
1917-12-01
Process for the manufacture of objects from concrete
CH63045A
(en )
1914-01-02
Process for the production of rash-free, color-stable, dark-colored asbestos-cement artificial stone panels
CH71161A
(en )
1915-12-01
Process for the production of portland cement
NL74C
(en )
1913-12-15
Process for the manufacture of imitation marble slabs
CH74200A
(en )
1917-01-16
Process for the production of glazed asbestos-cement boards
CH67858A
(en )
1915-01-16
Process for the production of lump lime by pressing
CH68285A
(en )
1915-03-01
Process for the production of hollow components from concrete
CH67851A
(en )
1915-01-16
Process for the production of marble-like artificial stone slabs
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH79296A
(en )
1919-04-01
Process for the production of shaped pieces from magnesia cement
CH71783A
(en )
1916-02-16
Process for the production of ceramic bodies for technical purposes
CH58604A
(en )
1913-03-17
Device for the production of blocks from brick or other mass
CH71053A
(en )
1915-11-16
Process for the production of art prints
CH49382A
(en )
1911-02-01
Process for the production of magnesia cement
CH63362A
(en )
1914-02-02
Process for the production of shaped pieces from common salt
CH63494A
(en )
1914-02-02
Process for the production of components
CH69337A
(en )
1915-06-16
Process for the production of methyl alcohol from chloromethane
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH68825A
(en )
1915-04-16
Process for the production of shaped pieces from milk powder
CH76307A
(en )
1917-12-01
Process for the production of flat structures from waste material
CH70124A
(en )
1915-09-01
Process for the production of shiny threads from raw viscose by means of mineral acid
AT82847B
(en )
1921-02-25
Process for the production of plastic masses from casein.
CH72523A
(en )
1916-05-16
Process for the production of mold powder from coal