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Priority to DD19669276ApriorityCriticalpatent/DD129168B1/de
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Publication of DD129168B1publicationCriticalpatent/DD129168B1/de
DD19669276A1976-12-291976-12-29Verfahren zur filtration von fluessigen medien,vorzugsweise wasser und filter mit koernigem schwimmendem bett
DD129168B1
(de)