AT104722B
(en )
1926-11-25
Process for the production of fertilizers.
AT108128B
(en )
1927-11-25
Process for the catalytic conversion of carbon-containing sulfur compounds into hydrogen sulfide.
FR645510A
(en )
1928-10-26
Improvements to septic tanks
CH154163A
(en )
1932-04-30
Process for the production of hydrogen sulfide.
AT105700B
(en )
1927-02-25
Process for burning pulverulent fuels
AT116564B
(en )
1930-02-25
Process for the production of sodium sulphide.
AT116361B
(en )
1930-02-25
Process for the catalytic oxidation of sulfur dioxide to sulfur trioxide.
CH141289A
(en )
1930-07-31
Process for the production of bituminous cardboard.
AT109157B
(en )
1928-03-26
Process for purifying gases.
CH144599A
(en )
1931-01-15
Process for the production of gravure printing forms for offset printing and gravure printing form produced by this process.
AT107008B
(en )
1927-08-10
Process for the production of allium preparations.
AT106724B
(en )
1927-06-25
Process for the production of cellulose.
AT109153B
(en )
1928-03-26
Process for the production of nitrogen fertilizer.
AT126993B
(en )
1932-02-25
Process for the production of water-repellent dry lime.
AT116360B
(en )
1930-02-25
Process for the catalytic oxidation of sulfur dioxide to sulfur trioxide.
AT114016B
(en )
1929-08-26
Process for the production of arsenic compounds.
CH145438A
(en )
1931-02-28
Process for the production of primary ferrophosphate.
AT107016B
(en )
1927-08-10
Process for cleaning tar and water-containing gases.
AT116362B
(en )
1930-02-25
Process for the desulfurization of structures made of viscose.
CA270974A
(en )
1927-05-24
Carbon disulphide refining
AT105034B
(en )
1926-12-27
Process for the manufacture of cellulose conversion products.
AT108161B
(en )
1927-12-10
Process for the production of printing blocks.
CH131732A
(en )
1929-02-28
Process for the production of printing blocks.
CH160166A
(en )
1933-02-28
Process for the production of benzene hydrocarbons.
CH121141A
(en )
1927-06-16
Process for the production of sleeves for table sliders.