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Priority to JP10217886UpriorityCriticalpatent/JPS638902U/ja
Publication of JPS638902UpublicationCriticalpatent/JPS638902U/ja
Vorrichtung zur Erzeugung von Furchen und Wellen in Baendern aus Leinwand oder anderen geeigneten biegsamen Stoffen, ins-besondere zum Einbinden von Buechern