CH77250A
(en )
1919-02-02
Process for making a soap substitute
CH76510A
(en )
1918-01-02
Process for making a soap substitute
CH75877A
(en )
1917-10-01
Process for making a soap substitute
CH76328A
(en )
1917-12-01
Process for making a soap substitute
CH81566A
(en )
1919-09-01
Process for making a soap substitute
CH76185A
(en )
1917-11-01
Process for producing a detergent
CH74337A
(en )
1917-02-16
Process for making a soap substitute
CH75774A
(en )
1918-02-01
process for the production of a soap preparation
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
CH75544A
(en )
1917-08-16
process for the production of a detergent
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
CH73106A
(en )
1916-10-02
Process for the production of a leather substitute
CH72963A
(en )
1917-01-02
Process for making a fertilizer
CH80533A
(en )
1919-03-17
Process for the production of a plastic
CH81608A
(en )
1919-12-01
Process for the production of a coffee substitute
CH59431A
(en )
1913-05-16
Process for making clichés
CH74125A
(en )
1917-01-16
Method for producing a coffee substitute
CH79494A
(en )
1918-12-02
Process for the manufacture of a leather substitute
CH82060A
(en )
1919-08-16
Process for the manufacture of a leather substitute
CH81236A
(en )
1919-05-16
Process for the production of a copper-containing substantive cotton dye
CH81237A
(en )
1919-05-16
Process for the production of a copper-containing substantive cotton dye