CH75974A
(en )
1917-10-16
Process for the production of silicon carbide
AT80091B
(en )
1920-02-25
Process for the preparation of caramel. Process for the preparation of caramel.
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH81407A
(en )
1919-11-01
Process for the production of roughened, spotless silicon carbide cement surfaces
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH76096A
(en )
1918-04-01
Process for the production of urea
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH75333A
(en )
1917-12-01
Process for the production of etched embroidery
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH72251A
(en )
1916-04-17
Process for the production of highly refractory articles
CH76405A
(en )
1917-12-17
Process for the manufacture of refractory products
CH75422A
(en )
1917-07-16
Process for the production of glazed asbestos-cement articles
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH77932A
(en )
1918-06-17
Process for the production of calcium cyanamide
CH78925A
(en )
1918-09-16
Process for the production of highly refractory bricks
CH71918A
(en )
1916-03-01
Process for the production of aluminum hydroxide
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH77381A
(en )
1918-09-02
Process for the production of artificial leather