CH327712A
(en )
1958-02-15
Process for cleaning silicon
AT278221B
(en )
1970-01-26
Process for processing high quality oils
AT178093B
(en )
1954-04-10
Process for processing copper-containing pyrites
AT174204B
(en )
1953-03-10
Process for processing rubber compounds
AT172653B
(en )
1952-10-10
Process for continuous sulfonation
AT177885B
(en )
1954-03-10
Method for obtaining antibioticis
AT190627B
(en )
1957-07-10
Process for homogenizing molten polyamides
AT174528B
(en )
1953-04-10
Process for protein production
AT172118B
(en )
1952-08-11
Process for cooling mines
AT184594B
(en )
1956-02-10
Process for the reduction of ores
AT177357B
(en )
1954-01-25
Process for improving the surface of skiing areas
AT174442B
(en )
1953-03-25
Process for the desulphurization of gases
AT185707B
(en )
1956-05-25
Process for making waterproof sandpaper
AT178425B
(en )
1954-05-10
Method for obtaining antibioticis
AT170626B
(en )
1952-03-10
Process for carrying out acid-producing fermentation processes
AT171774B
(en )
1952-07-10
Device for processing elongated flat surfaces
AT180228B
(en )
1954-11-25
Process for processing mica
CH331865A
(en )
1958-08-15
Process for cleaning metallic objects
AT174621B
(en )
1953-04-25
Process for improving cast iron
AT170903B
(en )
1952-04-10
Process for the production of potato protein
AT187225B
(en )
1956-10-25
Process for mineral tanning
AT188721B
(en )
1957-02-11
Process for the processing of ferrous sulphate
AT172925B
(en )
1952-10-25
Process for the production of pure olefins
AT172677B
(en )
1952-10-10
Process for preserving eggs
AT175958B
(en )
1953-09-10
Process for improving waxes or waxy substances