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Application filed by Pavol Ing FarkasfiledCriticalPavol Ing Farkas
Priority to CS859253ApriorityCriticalpatent/CS254916B1/en
Publication of CS925385A1publicationCriticalpatent/CS925385A1/en
Publication of CS254916B1publicationCriticalpatent/CS254916B1/en
CS859253A1985-12-131985-12-13
A cover for sealing the expanding walls of the steam boilers in the area of penetration of the article through the wall
CS254916B1
(en)