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Priority to JP14079985UpriorityCriticalpatent/JPH0328402Y2/ja
Publication of JPS6249102UpublicationCriticalpatent/JPS6249102U/ja
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Publication of JPH0328402Y2publicationCriticalpatent/JPH0328402Y2/ja
Passe-cloison haute pression pour fibres optiques ou conducteurs electriques, methode pour le fabriquer et amplificateur-regenerateur et systeme de transmission l'incorporant