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Publication of AT313774BpublicationCriticalpatent/AT313774B/de
Tanecikler ve/veya parcalar halindeki malzemenin termik muamelesine,ve bilhassa kirecin,dolomitin,manyezitin veya benzerlerinin yakilmasina mahsus usul ve bu usuluen tatbikine mahsus kuyu seklinde firin