CH527130A
(en )
1972-08-31
Method and device for treating waste water
CH413914A
(en )
1966-05-31
Method and device for influencing acoustic signals
CH459106A
(en )
1968-07-15
Process for waste processing and apparatus for carrying out the process
AT196333B
(en )
1958-03-10
Method and device for the production of steel pipes
CH366824A
(en )
1963-01-31
Method and device for the distribution of solids
AT247697B
(en )
1966-06-27
Method and device for the production of filter bodies
CH392433A
(en )
1965-05-31
Method and device for the production of reinforcing steel
AT305914B
(en )
1973-03-26
Process and device for the purification of waste water
AT184585B
(en )
1956-02-10
Process and device for utilizing short-term waste heat
AT306656B
(en )
1973-04-25
Method and device for the treatment of waste water
CH439140A
(en )
1967-06-30
Method and device for the biological purification of waste water
AT181574B
(en )
1955-04-12
Device and method for the partial digestion and purification of waste water
AT248708B
(en )
1966-08-10
Method and device for the production of very pure calcium
AT311276B
(en )
1973-11-12
Method and device for the purification of waste water
CH407889A
(en )
1966-02-15
Process and device for the biological purification of waste water
AT213350B
(en )
1961-02-10
Process and device for the treatment of waste water
CH460226A
(en )
1968-07-31
Process for incineration of waste and facility for carrying out the process
AT291136B
(en )
1971-07-12
Method and device for the purification of waste water
AT252783B
(en )
1967-03-10
Method and device for the production of building blocks
AT305912B
(en )
1973-03-26
Process and device for the purification of waste water
CH249877A
(en )
1947-07-31
Process and device for the purification of waste water.
AT184126B
(en )
1955-12-27
Method and device for carrying out improvements
AT187055B
(en )
1956-10-10
Method and device for water treatment
AT195315B
(en )
1958-01-25
Device and method for the internal treatment of concrete
AT184535B
(en )
1956-01-25
Method and device for determining the course of boreholes