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Priority claimed from JP20216182Aexternal-prioritypatent/JPS5994272A/en
Priority claimed from JP19523682Uexternal-prioritypatent/JPS5999251U/en
Application filed by Philips NvfiledCriticalPhilips Nv
Priority claimed from EP83201622Aexternal-prioritypatent/EP0109710B1/en
Application grantedgrantedCritical
Publication of ATE28947T1publicationCriticalpatent/ATE28947T1/en