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Priority to DD16371072ApriorityCriticalpatent/DD98355B1/de
Publication of DD98355A1publicationCriticalpatent/DD98355A1/xx
Publication of DD98355B1publicationCriticalpatent/DD98355B1/de
DD16371072A1972-06-151972-06-15Einrichtung zur zufuehrung von fluessigen oder gasfoermigen medien an rauchgasrueckfuehrungen, vorzugsweise fuer dampferzeuger
DD98355B1
(de)