CH76338A
(en )
1917-12-01
Process for extracting zinc from zinc powder
CH76337A
(en )
1917-12-01
Process for extracting zinc from zinc powder
AT80091B
(en )
1920-02-25
Process for the preparation of caramel. Process for the preparation of caramel.
AT108103B
(en )
1927-11-25
Process for the production of moldings from metals.
CH79490A
(en )
1918-12-02
Process for separating zinc from zinc ash
CH77857A
(en )
1918-06-01
Process for the production of inulin which can be used for therapeutic purposes from plants
CH76064A
(en )
1917-11-01
Process for the production of briquettes from sawdust
CH77500A
(en )
1918-09-02
Process for dry briquetting
CH76172A
(en )
1917-11-01
Process for the production of briquettes from combustible waste
AT88401B
(en )
1922-05-10
Process for the production of zinc-lead paints.
CH76292A
(en )
1917-12-01
Process for the manufacture of objects from concrete
CH75231A
(en )
1917-06-16
Process for the extraction of staple fibers from gorse
CH76373A
(en )
1917-12-01
Process for the preparation of glycolyl-p-phenetidide
AT89300B
(en )
1922-08-25
Process for the extraction of pectin substances.
CH81775A
(en )
1919-07-16
Process for the production of zinc sulfate from zinc blende
CH76173A
(en )
1918-04-01
Process for the production of shaped pieces from coal dust
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH79491A
(en )
1918-12-02
Process for the production of copper oxide
CH79339A
(en )
1918-11-01
Process for the preparation of acetaldehyde from acetylene
CH72593A
(en )
1916-06-16
Process for the preparation of p-toluidine from p-nitrotoluene
CH76149A
(en )
1917-11-01
Process for the preparation of 6-oxy-2-phenylpyridine-5-carboxylic acid (2-phenylpyridone-5-carboxylic acid)
CH79066A
(en )
1918-10-01
Process for the extraction of oil
AT87471B
(en )
1922-02-25
Process for the production of sulfur from hydrogen sulfide.
CH82982A
(en )
1919-11-01
Process for the extraction of soluble components from cellulose-containing substances
CH78380A
(en )
1918-11-16
Process for the preparation of hydrocodeine