US5389677B1
(en )
1997-07-15
Method of treating wrinkles using glycalic acid
CS9787A2
(en )
1990-02-12
Method of hyaluronic acid's insulation
CS8903346A2
(en )
1991-08-13
Method of sulphuric acid's vapours condensation and equipment for this method realization
DE3565822D1
(en )
1988-12-01
Purification and reconcentration of waste sulphuric acid
IL84199A0
(en )
1988-03-31
Glycolipid containing n-glycolyl-neuraminic acid and method of producing same
IL89044A0
(en )
1989-08-15
Process for the recovery and concentration of sulfuric acid
DE3565092D1
(en )
1988-10-27
Apparatus and process for the concentration of sulphuric acid
CS597787A2
(en )
1989-08-14
Agent for animals' utility increase and method of effective substances production
PL272668A1
(en )
1989-02-20
Method of obtaining 4,4'-dinitroethylbenedisulfonic-2,2'acid
CS187886A1
(en )
1989-06-13
Method of waste sulphuric acid's concentration
CS8703287A1
(en )
1989-09-12
Method of 2-benzothiazolsulphenic acid's sulphenamides preparation
CS592687A2
(en )
1990-07-12
Method of l-diaminocarboxyl acid's ester production
CS300988A1
(en )
1989-05-12
Method of quinonine sulphuric acid's refining
EP0240362A3
(en )
1989-03-29
Process for the preparation of 4'-hydroxybiphenyl-4-carboxylic acid
PL254140A1
(en )
1987-02-09
Method of utilizing waste sulfuric acid
CS560390A2
(en )
1991-09-15
Method of alpha-naphthalenesulphonic acid's hydrolysis in naphthalenesulphonation mixture
PL237209A1
(en )
1984-01-02
Method of concentration of waste sulfuric acid
CS295090A2
(en )
1991-12-17
Method of waste sulphuric acid treatment
CS334587A2
(en )
1989-04-14
Method of alcohols' aqueous solutions concentration
PL251682A2
(en )
1985-11-19
Sulfuric acid concentration method
CS265088A1
(en )
1989-07-12
Method of waste suphuric acid treatment
PL244175A1
(en )
1985-04-24
Method of concentration of sulfuric acid solution
BG42430A1
(en )
1987-12-15
Diimides of perilene- 3, 4, 9, 10- tetracarbonic acid and method for their manufacture
CS306986A1
(en )
1989-06-13
Dithioderivatives of 0-carbamoylmethyl-4-hydroxybutanesulphonic acid and method of their preparation
IE862207L
(en )
1987-02-19
"method of attaching biological substances of solid¹substances"