CH75552A
(en )
1917-08-16
Process for the production of printing inks
AT80091B
(en )
1920-02-25
Process for the preparation of caramel. Process for the preparation of caramel.
CH86573A
(en )
1920-09-01
Process for the production of gravure forms.
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH76946A
(en )
1918-02-16
Process for the production of stereotypical stereotypical stereotyping boards for art print purposes
AT88401B
(en )
1922-05-10
Process for the production of zinc-lead paints.
CH75333A
(en )
1917-12-01
Process for the production of etched embroidery
CH55911A
(en )
1912-09-16
Process for the production of printing inks for stuff printing
CH74852A
(en )
1917-04-16
Process for the production of an additive for book and stone printing inks
AT98665B
(en )
1924-12-10
Process for the production of tanning substances.
CH75974A
(en )
1917-10-16
Process for the production of silicon carbide
CH76168A
(en )
1917-11-01
Process for the production of cold-laid asphalt
CH76805A
(en )
1918-06-17
process for the production of nutrient pulp
CH82104A
(en )
1919-09-01
Process for the production of oak imitations
CH76405A
(en )
1917-12-17
Process for the manufacture of refractory products
AT88463B
(en )
1922-05-26
Process for the production of cyanate alkali.
AT88464B
(en )
1922-05-26
Process for the production of alkali cyanate.
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH78801A
(en )
1919-02-01
Process for the production of multilayer paper sacks
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
AT98925B
(en )
1924-12-27
Process for the manufacture of cartridge cases.
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate