CH75422A
(en )
1917-07-16
Process for the production of glazed asbestos-cement articles
CH74200A
(en )
1917-01-16
Process for the production of glazed asbestos-cement boards
CH72251A
(en )
1916-04-17
Process for the production of highly refractory articles
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH76405A
(en )
1917-12-17
Process for the manufacture of refractory products
CH75974A
(en )
1917-10-16
Process for the production of silicon carbide
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH68990A
(en )
1915-05-17
Process for the production of soluble silica
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
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH72958A
(en )
1916-07-17
Process for the production of sodium percarbonate
CH70280A
(en )
1915-09-01
Process for the production of alcohol-free wines
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH75897A
(en )
1917-10-01
Process for the production of drive belts
CH79967A
(en )
1919-01-16
Process for the production of enamelled everyday objects
CH72824A
(en )
1916-07-01
Process for the production of nitrogen compounds
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH71161A
(en )
1915-12-01
Process for the production of portland cement