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Priority claimed from JP57042955Aexternal-prioritypatent/JPS58162603A/ja
Priority claimed from JP57047946Aexternal-prioritypatent/JPS58164403A/ja
Application filed by Bridgestone Tire Co Ltd, Japan Synthetic Rubber Co LtdfiledCriticalBridgestone Tire Co Ltd
Priority claimed from EP83301544Aexternal-prioritypatent/EP0089839B2/de
Application grantedgrantedCritical
Publication of ATE31067T1publicationCriticalpatent/ATE31067T1/de