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Krzysztof Kowalski
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Chelm, PL
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Patent Grant
Method of producing polymers of the polyurethane type
Patent number
4,481,346
Issue date
Nov 6, 1984
Wyzsza Szkola Inzynierska Im. Kazimierza Pulaskiego
Zygmunt Wirpsza
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...