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Priority to JP2985780UpriorityCriticalpatent/JPS6115318Y2/ja
Priority to GB8105414Aprioritypatent/GB2072280B/en
Priority to DE3106374Aprioritypatent/DE3106374C2/de
Priority to US06/236,496prioritypatent/US4456099A/en
Publication of JPS56133138UpublicationCriticalpatent/JPS56133138U/ja
Application grantedgrantedCritical
Publication of JPS6115318Y2publicationCriticalpatent/JPS6115318Y2/ja