CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH58857A
(en )
1913-04-01
Process for the production of artificial stones
CH59610A
(en )
1913-06-02
Process for the production of artificial stones
CH61357A
(en )
1913-09-16
Process for the production of artificial stones
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
CH55344A
(en )
1912-08-01
Process for the production of artificial threads
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH57546A
(en )
1913-01-16
Process for the production of size
CH51608A
(en )
1911-09-01
Process for the production of artificial stone
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH59100A
(en )
1913-04-16
Device for the production of artificial stones
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH56835A
(en )
1912-12-02
Process for the production of artificial tobacco leaves
CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH56855A
(en )
1912-11-16
Process for the production of artificial leather
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH57225A
(en )
1912-12-16
Process for the production of artificial marble from hydraulic mortars