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Priority claimed from DE19843409299external-prioritypatent/DE3409299C2/de
Priority claimed from DE19843409300external-prioritypatent/DE3409300C1/de
Application filed by Ver Glaswerke GmbhfiledCriticalVer Glaswerke Gmbh
Priority claimed from EP85400498Aexternal-prioritypatent/EP0155218B1/de
Application grantedgrantedCritical
Publication of ATE50385T1publicationCriticalpatent/ATE50385T1/de