CH57225A
(en )
1912-12-16
Process for the production of artificial marble from hydraulic mortars
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH76292A
(en )
1917-12-01
Process for the manufacture of objects from concrete
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH58351A
(en )
1913-03-01
Process for the production of artificial building blocks
CH66967A
(en )
1914-11-02
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
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
AT41185B
(en )
1910-02-25
Process for the production of artificial marble.
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH57546A
(en )
1913-01-16
Process for the production of size
CH63045A
(en )
1914-01-02
Process for the production of rash-free, color-stable, dark-colored asbestos-cement artificial stone panels
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH64900A
(en )
1914-05-01
Process for the production of artificial structures from viscose
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH75154A
(en )
1917-06-01
Process for the production of shaped pieces from fodder
CH50318A
(en )
1911-05-16
Process for the production of reinforced concrete floors
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH55344A
(en )
1912-08-01
Process for the production of artificial threads