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
CH65140A
(en )
1914-05-16
Process for the production of leather
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH56855A
(en )
1912-11-16
Process for the production of artificial leather
CH63602A
(en )
1914-02-02
Process for the production of cartridge cases
CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH59877A
(en )
1913-06-02
Process for the production of embroidery templates
CH66502A
(en )
1914-09-16
Process for the production of cyanides
CH65547A
(en )
1914-06-16
Process for the production of leather fats
CH60521A
(en )
1913-07-16
Process for the manufacture of footwear
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH63133A
(en )
1914-01-02
Process for the manufacture of explosives
CH62140A
(en )
1913-11-01
Process for the manufacture of explosives
CH71810A
(en )
1916-02-16
Process for the production of artificial leather
CH81317A
(en )
1919-06-02
Process for the production of leather
CH63123A
(en )
1914-01-02
Process for the production of hydrogen chloride
CH65234A
(en )
1914-06-01
Process for the production of dihydromorphine
CH60359A
(en )
1913-07-16
Process for the production of posters
CH59153A
(en )
1913-04-16
Process for the production of glycoheptonic acid
CH79743A
(en )
1919-01-02
Process for the production of leather by means of iron salts
CH75618A
(en )
1917-09-01
Process for the production of leather by means of iron salts
CH74848A
(en )
1917-04-16
Process for the production of leather by means of iron salts
CH74849A
(en )
1917-04-16
Process for the production of leather by means of iron salts