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Priority to JP16943481UpriorityCriticalpatent/JPS5873766U/ja
Publication of JPS5873766UpublicationCriticalpatent/JPS5873766U/ja
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Publication of JPH035576Y2publicationCriticalpatent/JPH035576Y2/ja
Tear-open flap orifice on packs consisting of plastic-coated laminated material with a folded-round fillet-seam closure and a process for producing the tear-open flap orifice