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Priority to JP1558976ApriorityCriticalpatent/JPS5298994A/ja
Publication of JPS5298994ApublicationCriticalpatent/JPS5298994A/ja
Publication of JPS5539083B2publicationCriticalpatent/JPS5539083B2/ja
Spannelement zur Verbindung mehrerer uebereinanderliegender Bleche od. dgl., vorzugsweise zur Verbindung von Federschienen fuer den hydraulischen Grubenausbau