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Application filed by Ludvik Piska, Rudolf StasfiledCriticalLudvik Piska
Priority to CS141176ApriorityCriticalpatent/CS179831B1/cs
Publication of CS179831B1publicationCriticalpatent/CS179831B1/cs
CS141176A1976-03-041976-03-04Device for mechanical cleaning bearing surfaces of holes and covers thereof adapted in the door of coking chamber
CS179831B1
(en)