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Priority to JP5749679UpriorityCriticalpatent/JPS59976Y2/ja
Priority to DE19803015836prioritypatent/DE3015836A1/de
Publication of JPS55155625UpublicationCriticalpatent/JPS55155625U/ja
Application grantedgrantedCritical
Publication of JPS59976Y2publicationCriticalpatent/JPS59976Y2/ja