CH76405A
(en )
1917-12-17
Process for the manufacture of refractory products
CH72251A
(en )
1916-04-17
Process for the production of highly refractory articles
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH78925A
(en )
1918-09-16
Process for the production of highly refractory bricks
CH75422A
(en )
1917-07-16
Process for the production of glazed asbestos-cement articles
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH75974A
(en )
1917-10-16
Process for the production of silicon carbide
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
CH68990A
(en )
1915-05-17
Process for the production of soluble silica
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH74900A
(en )
1917-05-01
Process for the manufacture of pneumatic jackets
AT80091B
(en )
1920-02-25
Process for the preparation of caramel. Process for the preparation of caramel.
CH79967A
(en )
1919-01-16
Process for the production of enamelled everyday objects
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH76779A
(en )
1918-02-01
Process for the production of pressed briquettes
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
AT89320B
(en )
1922-09-11
Process for the preparation of O-alkyl derivatives of hydrocupreine.
CH78380A
(en )
1918-11-16
Process for the preparation of hydrocodeine
CH80094A
(en )
1919-02-01
Process for the production of sodium percarbonate
AT88401B
(en )
1922-05-10
Process for the production of zinc-lead paints.
CH77932A
(en )
1918-06-17
Process for the production of calcium cyanamide
CH76711A
(en )
1918-05-16
Process for the production of wire drawing dies