CH203162A
(en )
1939-02-28
Process for the production of diazotypes.
CH185649A
(en )
1936-08-15
Process for spinning viscose.
CH203688A
(en )
1939-03-31
Process for exchanging cations in solutions.
FR835315A
(en )
1938-12-19
Filters for liquids
CH218481A
(en )
1941-12-15
Method of operating sprinkler evaporators.
AT173465B
(en )
1952-12-27
Process for filtering liquids
CH200958A
(en )
1938-11-15
Process for treating glass fibers.
CH220201A
(en )
1942-03-31
Process for the evaporation of waste liquid from cellulose production.
FR828557A
(en )
1938-05-20
Process for hydrogenating cyclic hydrocarbons
CH208880A
(en )
1940-02-29
Process for the production of copper phthalocyanine.
FR830870A
(en )
1938-08-11
Process for collecting aromatic hydrocarbons
CH211915A
(en )
1940-10-31
Filters for cleaning liquids and gases.
CH240131A
(en )
1945-11-30
Procedure for turning off alternating current.
FR823147A
(en )
1938-01-14
Process for collecting hydrocarbons
AT172356B
(en )
1952-09-10
Process for coating metals
AT160194B
(en )
1941-02-25
Procedure for the operation of externally controlled pendulum multipliers.
CH211899A
(en )
1940-10-31
Process for obtaining xanthate solutions.
FR836794A
(en )
1939-01-25
Welding process
FR825997A
(en )
1938-03-18
Filtration apparatus
CH218886A
(en )
1942-01-15
Process for the production of pastes.
AT186582B
(en )
1956-08-25
Process for removing non-sugars from liquids containing sugar
FR820837A
(en )
1937-11-19
Polychrome reproduction process
FI18676A
(en )
1940-11-04
Förfaringssätt for rening av natriumhydroxidlutar
AT160170B
(en )
1941-02-25
Process for the preparation of acidic anthraquinone dyes.
AT106715B
(en )
1927-06-25
Process for separating liquid mixtures.