CH73106A
(en )
1916-10-02
Process for the production of a leather substitute
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
CH67114A
(en )
1914-11-02
Process for the production of a wood substitute
CH75544A
(en )
1917-08-16
process for the production of a detergent
CH72963A
(en )
1917-01-02
Process for making a fertilizer
CH74337A
(en )
1917-02-16
Process for making a soap substitute
CH52415A
(en )
1911-11-16
Process for the manufacture of a leather substitute
AT71274B
(en )
1916-02-25
Process for the production of a tanning agent.
CH75554A
(en )
1917-08-16
Process for the production of an artificial fertilizer
CH77250A
(en )
1919-02-02
Process for making a soap substitute
CH75657A
(en )
1917-09-01
Process for the production of a sole leather substitute material
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
CH64941A
(en )
1914-05-01
Process for the manufacture of a celluloid substitute
CH76185A
(en )
1917-11-01
Process for producing a detergent
CH81778A
(en )
1919-07-16
Process for the preparation of a gallocyanine derivative
CH75877A
(en )
1917-10-01
Process for making a soap substitute
CH76328A
(en )
1917-12-01
Process for making a soap substitute
CH76510A
(en )
1918-01-02
Process for making a soap substitute
CH81566A
(en )
1919-09-01
Process for making a soap substitute
CH80533A
(en )
1919-03-17
Process for the production of a plastic
CH79494A
(en )
1918-12-02
Process for the manufacture of a leather substitute