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Priority claimed from DE19873722832external-prioritypatent/DE3722832A1/en
Application filed by Electronic Werke Deutschland, Ehmann ElektrotechfiledCriticalElectronic Werke Deutschland
Priority claimed from EP88110444Aexternal-prioritypatent/EP0297572B1/en
Application grantedgrantedCritical
Publication of ATE63190T1publicationCriticalpatent/ATE63190T1/en