DK290184D0 - Fremgangsmaade til fibrering af smeltet glas ved hjaelp af et centrifugelegeme, og centrifugelegeme til udoevelse af fremgangsmaaden
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Fremgangsmaade til fibrering af smeltet glas ved hjaelp af et centrifugelegeme, og centrifugelegeme til udoevelse af fremgangsmaaden
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Priority claimed from FR7834616Aexternal-prioritypatent/FR2443436B1/fr
Priority claimed from DK522679Aexternal-prioritypatent/DK154496C/da
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