CH312219A
(en )
1955-12-31
Process for the regeneration of waste paper.
AT249233B
(en )
1966-09-12
Process for treating a lubricating oil to improve its color stability
CH319956A
(en )
1957-03-15
Process for the treatment of water containing hardness constituents to prevent the formation and to remove solid, coherent crusts
CH327296A
(en )
1958-01-31
Method for the electrolytic application of an iron layer to an object
AT192527B
(en )
1957-10-25
Process for treating crude oil to reduce sludge formation during storage
AT191250B
(en )
1957-08-10
Process for the regeneration of waste paper
CH381856A
(en )
1964-09-15
Process for the treatment of polyolefin surfaces to improve printability
AT184755B
(en )
1956-02-25
Process for the automatic evaluation of documents
AT196991B
(en )
1958-04-10
Process for treating crude oil
CH383424A
(en )
1964-10-31
Method of treating steel
DEG12424B
(en )
1956-04-19
Process to increase the oil yield when water is flooded from oil deposits
CH333910A
(en )
1958-11-15
Process for the continuous production of alkyl nitrates
AT196126B
(en )
1958-02-25
Process for purifying polyolefins
CH377868A
(en )
1964-05-31
Method of treating steel
CH451894A
(en )
1968-05-15
Process for lowering the pour point of hydrocarbon oils
CH348226A
(en )
1960-08-15
Process for the production of lubricating oil
CH318445A
(en )
1957-01-15
Process for the recovery of dimethylnitrosamine
AT198400B
(en )
1958-06-25
Process for the processing of hard asphalt-rich crude oils
AT237171B
(en )
1964-12-10
Process for treating lubricating oils
CH343431A
(en )
1959-12-31
Process for treating the running surface of rails
AT187999B
(en )
1956-12-10
Process for the continuous treatment of liquid hydrocarbons
AT191398B
(en )
1957-08-26
Process for the continuous washing of crude nitro compounds
AT188337B
(en )
1957-01-10
Process for cleaning precoat filters
AT205511B
(en )
1959-10-10
Method of reducing the tendency for sodium chloride to cake
AT170282B
(en )
1952-02-11
Process for treating oils