CH416156A
(en )
1966-06-30
Process for producing durable reagent papers
CH312219A
(en )
1955-12-31
Process for the regeneration of waste paper.
CH300957A
(en )
1954-08-31
Process for the production of semi-pulp.
AT174135B
(en )
1953-02-25
Process for improving binders based on oils, natural resins or synthetic resins
CH254797A
(en )
1948-05-31
Process for making cryolite.
AT184755B
(en )
1956-02-25
Process for the automatic evaluation of documents
CH331507A
(en )
1958-07-31
Process for the production of aromatic hydrocarbons
CH309453A
(en )
1955-08-31
Process for the production of leather cigarette cases.
CH307970A
(en )
1955-06-30
Process for the production of chlorofluoroethenes.
AT178202B
(en )
1954-04-26
Process for hardening ethoxylin resins
AT175958B
(en )
1953-09-10
Process for improving waxes or waxy substances
AT176674B
(en )
1953-11-10
Process for hardening ethoxylin resins
AT176363B
(en )
1953-10-10
Process for hardening ethoxylin resins
CH296672A
(en )
1954-02-28
Process for cleaning heavy fuel oils.
AT189316B
(en )
1957-03-25
Process for upgrading petroleum hydrocarbon fractions
CH237389A
(en )
1945-04-30
Process for halogenating hydrocarbons.
AT177885B
(en )
1954-03-10
Method for obtaining antibioticis
DEP20023B
(en )
1951-06-07
Process for the sulfochlorination of liquid, saturated hydrocarbons
AT189624B
(en )
1957-04-25
Process for the production of aromatic hydrocarbons
AT191866B
(en )
1957-09-25
Process for the production of aromatic hydrocarbons
AT183853B
(en )
1955-11-25
Process for improving the knock resistance of petrol
AT178200B
(en )
1954-04-10
Process for improving the storage stability of synthetic resins
CH225775A
(en )
1943-02-28
Process for the production of zeolites.
CH394449A
(en )
1965-06-30
Process for cracking petroleum or petroleum fractions
AT176673B
(en )
1953-11-10
Process for improving the curing properties of phenolic resins