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Priority claimed from GB8819180Aexternal-prioritypatent/GB2223455A/en
Priority claimed from GB888829670Aexternal-prioritypatent/GB8829670D0/en
Application filed by Esselte Meto Int GmbhfiledCriticalEsselte Meto Int Gmbh
Priority claimed from EP19890308206external-prioritypatent/EP0354815B1/de
Application grantedgrantedCritical
Publication of ATE104601T1publicationCriticalpatent/ATE104601T1/de