CH75879A
(en )
1918-01-02
Process for obtaining a high-quality tanning agent from spruce bark
CH72963A
(en )
1917-01-02
Process for making a fertilizer
CH77250A
(en )
1919-02-02
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
CH73106A
(en )
1916-10-02
Process for the production of a leather substitute
CH94692A
(en )
1922-05-01
Process for producing a coating 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
CH57308A
(en )
1913-01-02
Process for making a fertilizer
AT71274B
(en )
1916-02-25
Process for the production of a tanning agent.
CH81566A
(en )
1919-09-01
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
CH75877A
(en )
1917-10-01
Process for making a soap 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
CH80697A
(en )
1919-04-01
Process for the preparation of a nitrated o-oxyazo dye
CH78891A
(en )
1918-09-16
Process for the preparation of a stain-coloring leukotriphenylmethanazo dye
CH78888A
(en )
1918-09-16
Process for the preparation of a stain-coloring leukotriphenylmethanazo dye
CH78889A
(en )
1918-09-16
Process for the preparation of a stain-coloring leukotriphenylmethanazo dye
CH78890A
(en )
1918-09-16
Process for the preparation of a stain-coloring leukotriphenylmethanazo dye
CH77661A
(en )
1918-05-16
Process for the preparation of a stain-coloring leukotriphenylmethanazo dye