AT183642B
(en )
1955-10-25
Method and device for the physical preparation of paper stock
CH283513A
(en )
1952-06-15
Process and device for the production of flat structures.
AT171908B
(en )
1952-07-25
Process and device for the evaporation of phenol-containing gas waste water
AT176517B
(en )
1953-10-26
Device for treating liquids
CH287573A
(en )
1952-12-15
Process and system for purifying water.
CH249877A
(en )
1947-07-31
Process and device for the purification of waste water.
AT176394B
(en )
1953-10-10
Process for the production of adhesive and at the same time water-repellent agents for combating rodents
AT169330B
(en )
1951-11-10
Process for the preparation of pyromellitic anhydride
AT185924B
(en )
1956-06-25
Process for the destruction of wastewater containing phenol
AT173953B
(en )
1953-02-10
Device for the optional extraction of natural water and soda water from water taps
AT168961B
(en )
1951-09-25
Method and device for the production of artificial mineral water
AT177138B
(en )
1953-12-28
Device for evaporation of encrustation-forming liquids
AT171519B
(en )
1952-06-10
Method and device for the production of prestressed steel-string concrete supports
AT174442B
(en )
1953-03-25
Process for the desulphurization of gases
AT176803B
(en )
1953-11-25
Process for the treatment of industrial and service water
AT177729B
(en )
1954-02-25
Device for the clarification of waste water
AT175853B
(en )
1953-08-25
Method and device for the treatment of liquids containing foreign matter
AT172696B
(en )
1952-10-10
Device for the continuous production of porous mortar
AT172953B
(en )
1952-11-10
Process and device for the manufacture of candles
AT173271B
(en )
1952-12-10
Method and device for the manufacture of cement pipes
CH282741A
(en )
1952-05-15
Process for the decarbonisation of water.
CH285151A
(en )
1952-08-31
Process and system for wastewater treatment.
CH271129A
(en )
1950-10-15
Plant for the neutralization of the waste acids produced in liquid and gaseous form in an acid-working device.
AT174228B
(en )
1953-03-10
Device for the representation of statistical processes and planning work
AT175851B
(en )
1953-08-25
Process for rendering the hardness components of water harmless