AT87464B
(en )
1922-02-25
Process for separating finely divided substances from coarse or foreign admixtures.
CH69818A
(en )
1915-07-16
Process for the production of conical springs from steel strips
AT57735B
(en )
1913-02-25
Floating process for processing sulphidic ores.
CH72381A
(en )
1916-05-01
Process for pickling pelts
CH67702A
(en )
1915-01-16
Process for processing the gas water in small gas works
AT75550B
(en )
1919-02-25
Process for processing quicklime.
CH72421A
(en )
1916-05-16
Process for the separation of air or other gas mixtures
CH76639A
(en )
1918-02-01
Process for the separation of air or other gas mixtures
CH50222A
(en )
1911-05-01
Process for purifying cocoa
CH64477A
(en )
1914-04-01
Process for purifying hydrogen
CH70369A
(en )
1915-09-16
Process for the production of finely divided indanthrenes
CH70732A
(en )
1915-10-16
Process for gasifying sewer sludge
CH51158A
(en )
1911-08-01
Process for processing profiled objects
CH74440A
(en )
1918-01-02
Process for the recovery of solids dissolved or finely divided in liquids
CH69335A
(en )
1915-01-16
Method for carrying out catalytic processes
CH70634A
(en )
1915-10-16
Process for processing the wash water from nitrocellulose production
CH68860A
(en )
1915-05-01
Device for polishing metal goods by means of polishing bodies
CH76173A
(en )
1918-04-01
Process for the production of shaped pieces from coal dust
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH76738A
(en )
1918-02-01
Process and device for the separation of gas mixtures by means of rectification
AT75538B
(en )
1919-02-25
Process for cleaning liquids.
AT80122B
(en )
1920-02-25
Process for concentrating liquids. Process for concentrating liquids.
CH60979A
(en )
1913-09-16
Process for separating the adsorbents from the adsorbents
FR433622A
(en )
1912-01-12
Process for treating copper-containing substances
CH83126A
(en )
1919-11-17
Process for purifying the anthraquinone