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Priority to JP10868076UpriorityCriticalpatent/JPS5625791Y2/ja
Priority to DE19772736085prioritypatent/DE2736085A1/de
Priority to US05/824,314prioritypatent/US4137997A/en
Publication of JPS5326581UpublicationCriticalpatent/JPS5326581U/ja
Application grantedgrantedCritical
Publication of JPS5625791Y2publicationCriticalpatent/JPS5625791Y2/ja