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1990-09-12
Method of 10-dihydro-10-dexy-11-azarythronolides prepararation
PL261911A1
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1987-08-10
Method of filling fissures in coal deposits
PH21588A
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1987-12-11
Pleuromutilin derivatives and method of use thereof
ZW7488A1
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1988-12-21
New method and compositions of matter
GB2185264B
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1989-10-25
Gasification of coal
GB8709275D0
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1987-05-20
Extraction of petroleum
PL260921A1
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1988-01-07
Method of obtaining novel derivatives of n-4-pyridylamide
ZA882784B
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1988-10-20
Oil compositions of increased viscosity and method of preparing same
EP0220013A3
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1988-03-02
Method of dewatering brown coal
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1987-07-15
Improved toothstick and methods of production
EP0328754A3
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1990-08-01
Method of forming shaped-body to be sintered
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1990-06-25
Method to minimize viscosity and improve stability of coal water-fuels
PL270590A1
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1989-09-18
Method of obtaining chamomile oil with high content of natural spiroethers
GB2155947B
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1987-10-14
Liquefaction of sub-bituminous coal
PL271083A1
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1988-09-15
Method of obtaining novel azo lactones
PL267417A1
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1988-09-15
Method of obtaining tetrahydrofurane derivatives
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1993-12-30
Composition and method of stabilizing o-halopyridylphosphates
CS1020887A1
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1989-06-13
Symmetrical 1 to 2 cobalt-complex sulphosubstituted azo-dyestuff and method of its preparation
CS274683B2
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1991-09-15
Method of dialkyldichlorosuccinates
PL265496A1
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1988-02-18
Method of obtaining novel derivatives of trihalogenimidazole
PL261724A1
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1988-05-26
Method of mining thick and steep coal deposits
PL261723A1
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1988-05-26
Method of mining thick and steep coal deposits
PL251299A1
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1986-07-01
Method of obtaining novel derivatives of trans-3-aryl and trans-3-heteroarylacrylamide
PL263244A1
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1988-09-15
Method of making coal or graphite based ware
PL268984A1
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1989-05-30
Method of obtaining alkyl and polyoxyethylalkyl sulfates