CH80596A
(en )
1919-03-01
Process and device for the extraction of pure oxygen and nitrogen from the air
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.
CH76807A
(en )
1918-02-01
Process and device for cleaning air and gases
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
CH77184A
(en )
1918-03-16
Process and device for cleaning air and gases
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
CH316722A
(en )
1956-10-31
Process for removing nitrous and acidic impurities from the air and the system for carrying out the process
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.
CH80802A
(en )
1919-09-16
Method and device for the production of combustible gas with the recovery of by-products
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
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
AT175247B
(en )
1953-06-25
Method and arrangement for preventing the contamination of gases in gas separation or purification plants
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