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Priority claimed from JP4246815Aexternal-prioritypatent/JPH0692808A/ja
Priority claimed from JP7189993Aexternal-prioritypatent/JPH06280405A/ja
Application filed by Tokuyama CorpfiledCriticalTokuyama Corp
Application grantedgrantedCritical
Publication of TW263424BpublicationCriticalpatent/TW263424B/zh