CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
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
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
CH63061A
(en )
1914-01-02
Process for the production of artificial stones colored similar to 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
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH57742A
(en )
1913-02-01
Process for the production of colored chains
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
CH59100A
(en )
1913-04-16
Device for the production of artificial stones
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH73591A
(en )
1916-10-16
Process for the production of colored stereo images
CH51608A
(en )
1911-09-01
Process for the production of artificial stone