PL278545A1
(en )
1989-10-02
Method of obtaining novel derivatives of cyclobutylpurine and cyclobutylpyrimidine
PL270046A1
(en )
1989-07-10
Method of obtaining slow-burning paper
PL272979A1
(en )
1989-12-11
Method of obtaining 2-amin-4-mitrophenol
GB2228498B
(en )
1992-01-22
An improved method of paper making
PL274656A1
(en )
1990-03-19
Method of obtaining coriticotropine
PL270497A1
(en )
1989-08-07
Method of obtaining 5-methyl-2-pyrazoline
PL271315A1
(en )
1989-10-02
Method of obtaining dinitrobezanilides
PL272906A1
(en )
1989-12-11
Method of obtaining 1-cystine
PL270795A2
(en )
1988-11-24
Method of obtaining 2-methylthiosemicarbazide
PL273240A1
(en )
1989-12-27
Method of obtaining pentaerithrite
PL273742A2
(en )
1989-04-17
Method of obtaining 5-nitrobenzimidazolone-2
PL273988A1
(en )
1990-02-05
Method of obtaining 3-p-acetylaminobenzene sulfonamido-5-methylisoxazole
PL271288A1
(en )
1989-09-18
Method of obtaining 1-aryl-4-nitroimidazoles
PL274925A1
(en )
1990-04-02
Method of obtaining modified novolacks
CS841188A1
(en )
1989-07-12
Method of trisdiethylaminosiliciumchloride preparation
PL273298A1
(en )
1989-12-27
Method of obtaining derivatives of 21-fluoropregnane
PL272732A1
(en )
1989-12-11
Method of obtaining derivatives of indanosulfonamides
PL271009A1
(en )
1989-09-18
Method of obtaining novel phenylocarbamate
PL270528A1
(en )
1989-08-21
Method of obtaining novel derivatives of polycarpin
CS544788A1
(en )
1990-08-14
Method of polyethylenterephthalate preparation
GB8830252D0
(en )
1989-02-22
Method of strengthening paper
GB2224037B
(en )
1993-01-27
Improved method of combustion
PL272731A1
(en )
1989-12-11
Method of obtaining sufonamides
CS870188A1
(en )
1990-05-14
Method of 4-amino-1-phenyl-chloro-6-pyridazone
CS8800816A1
(en )
1989-04-14
Method of 3-methyl-7-alkyl xanthines preparation