CH54275A
(en )
1912-05-17
Form for the production of curved ceiling stones
CH55494A
(en )
1912-09-02
Hollow bodies for the production of ceilings
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH63782A
(en )
1914-02-16
Device for the production of artificial building blocks
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
CH55865A
(en )
1912-09-16
Process for the production of rollable plaster bases
CH59100A
(en )
1913-04-16
Device for the production of artificial stones
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH57546A
(en )
1913-01-16
Process for the production of size
CH59610A
(en )
1913-06-02
Process for the production of artificial stones
CH61357A
(en )
1913-09-16
Process for the production of artificial stones
CH58857A
(en )
1913-04-01
Process for the production of artificial stones
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH67004A
(en )
1914-11-02
Process for the manufacture of explosives
CH55868A
(en )
1912-09-16
Element for the production of walls
CH63494A
(en )
1914-02-02
Process for the production of components
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH56286A
(en )
1912-10-16
Hollow stone for the production of well-ventilated masonry
AT75547B
(en )
1919-02-25
Process for the production of disinfectants.
CH66062A
(en )
1914-08-01
Hollow stone for the production of hollow body slabs
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH71563A
(en )
1916-01-17
Molding box for the production of artificial stones