CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
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.
CH63494A
(en )
1914-02-02
Process for the production of components
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
CH66508A
(en )
1914-09-16
Process for the production of shoe wax
CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH65547A
(en )
1914-06-16
Process for the production of leather fats
CH64900A
(en )
1914-05-01
Process for the production of artificial structures from viscose
CH59641A
(en )
1913-06-02
Process for the production of artificial threads
CH62855A
(en )
1913-12-16
Process for making soap
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH57546A
(en )
1913-01-16
Process for the production of size
CH55344A
(en )
1912-08-01
Process for the production of artificial threads
CH60359A
(en )
1913-07-16
Process for the production of posters
CH60521A
(en )
1913-07-16
Process for the manufacture of footwear
CH63365A
(en )
1914-01-16
Process for the production of nitrocellulose