CH74821A
(en )
1917-06-01
Mold frames for the production of artificial stone workpieces
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH71563A
(en )
1916-01-17
Molding box for the production of artificial stones
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH72958A
(en )
1916-07-17
Process for the production of sodium percarbonate
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
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH72151A
(en )
1916-04-01
Forming machine for the production of hollow stones
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH74665A
(en )
1917-04-02
Process for the production of drive belts
CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH77246A
(en )
1918-03-16
Process for the electrolytic production of persons
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH75980A
(en )
1918-03-16
Process for the production of artificial leather