CH72059A
(en )
1916-04-01
Process for the manufacture of an agent for softening water
CH77250A
(en )
1919-02-02
Process for making a soap substitute
CH78282A
(en )
1918-07-01
Process for the production of a tanning agent
CH78797A
(en )
1918-09-02
Process for the production of a tanning agent
CH79015A
(en )
1918-10-01
Process for the production of a tanning agent
CH79130A
(en )
1918-10-01
Process for the production of a tanning agent
CH75519A
(en )
1917-08-01
Method of treating tar for the manufacture of tar macadam
CH80205A
(en )
1919-02-17
Process for the production of an agent for cleaning purposes of various kinds
CH78372A
(en )
1918-07-16
Process for the manufacture of stamps
CH75777A
(en )
1918-01-16
Process for the manufacture of a leather substitute
CH77251A
(en )
1918-03-16
Process for the manufacture of a leather substitute
CH76185A
(en )
1917-11-01
Process for producing a detergent
CH76510A
(en )
1918-01-02
Process for making a soap substitute
CH75877A
(en )
1917-10-01
Process for making a soap substitute
CH81566A
(en )
1919-09-01
Process for making a soap substitute
CH76328A
(en )
1917-12-01
Process for making a soap substitute
AT71274B
(en )
1916-02-25
Process for the production of a tanning agent.
CH72640A
(en )
1916-06-16
Process for the production of macroscopic permanent specimens
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH70371A
(en )
1915-09-16
Process for the production of a vat dye
CH70372A
(en )
1915-09-16
Process for the production of a vat dye
CH70370A
(en )
1915-09-16
Process for the production of a vat dye
CH69341A
(en )
1915-06-16
Process for the production of a vat dye
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH62350A
(en )
1913-11-17
Process for the preparation of an azimido anthraquinone