CH57767A
(en )
1913-02-01
Process for extracting oxygen and nitrogen from air
CH281744A
(en )
1952-03-31
Process for removing acid and nitrous contaminants from air.
CH76738A
(en )
1918-02-01
Process and device for the separation of gas mixtures by means of rectification
CH78963A
(en )
1918-09-16
Process and device for the reduction of ores
CH82598A
(en )
1920-03-01
Method and device for the electrical treatment of gases and vapors
AT185797B
(en )
1956-06-11
Method and device for separating solids from gases
CH83517A
(en )
1919-12-16
Method and device for the production of photographs of terrain from aircraft
CH80284A
(en )
1919-07-01
Device for separating gases, in particular air, by means of liquefaction and rectification
CH80085A
(en )
1919-06-02
Method and device for the production of cardboard boxes
CH65413A
(en )
1914-06-16
Method and device for the separation of gas mixtures
CH106143A
(en )
1924-08-01
Method and device for obtaining dry carbonic acid from carbonated gases, for supplying the same to the air of greenhouses.
CH77857A
(en )
1918-06-01
Process for the production of inulin which can be used for therapeutic purposes from plants
FR491475A
(en )
1919-06-04
Method and apparatus for purifying camphor
CH77537A
(en )
1918-09-02
Method and device for the preparation of hydrochloric acid from hydrogen gas and chlorine gas
CH76103A
(en )
1917-11-01
Method and device for the production of paper bags
CH79496A
(en )
1918-12-02
Method and device for the production of hollow bodies from paper stock
CH53772A
(en )
1912-04-01
Method and device for the production of nitrogen oxides from nitrogen-oxygen mixtures
AT198244B
(en )
1958-06-25
Process for the separation and recovery of carbonic acid from carbonated gas mixtures
AT110962B
(en )
1928-10-25
Process for rectifying the mixture of noble gases obtained when air is broken down into its components.
CH71193A
(en )
1915-12-01
Process for removing formic acid and other impurities from acetic acid
CH79341A
(en )
1918-11-01
Method and device for the extraction of shale oils
CH80375A
(en )
1919-03-01
Device for cleaning gas, in particular acetylene, from foreign impurities and for warding off harmful consequences of flashbacks
CH145434A
(en )
1931-02-28
Process and device for the electrical separation of floating bodies from gases or gas mixtures.
CH75849A
(en )
1917-10-01
Method and device for the manufacture of articles from reinforced concrete
AT195900B
(en )
1958-02-25
Process for the separation of fine dust or mist particles from flowing gases