CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH70719A
(en )
1915-10-16
Process for the manufacture of textile-like products
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH63602A
(en )
1914-02-02
Process for the production of cartridge cases
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH66502A
(en )
1914-09-16
Process for the production of cyanides
CH60359A
(en )
1913-07-16
Process for the production of posters
CH65140A
(en )
1914-05-16
Process for the production of leather
CH66042A
(en )
1914-08-01
Process for the production of leather
CH66043A
(en )
1914-08-01
Process for the production of leather
CH66044A
(en )
1914-08-01
Process for the production of leather
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH60521A
(en )
1913-07-16
Process for the manufacture of footwear
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
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
CH65234A
(en )
1914-06-01
Process for the production of dihydromorphine
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH61698A
(en )
1913-10-16
Process for the preparation of ß-acetyltrimethylenetetramethyldiamine
CH66860A
(en )
1914-10-16
Process for the production of dihydrocodeine
CH59153A
(en )
1913-04-16
Process for the production of glycoheptonic acid
CH62140A
(en )
1913-11-01
Process for the manufacture of explosives
CH63133A
(en )
1914-01-02
Process for the manufacture of explosives
CH70285A
(en )
1915-11-16
Process for the production of artificial rubber