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Priority to JP5308377UpriorityCriticalpatent/JPS5756145Y2/ja
Priority to US05/880,166prioritypatent/US4205536A/en
Priority to SE7802116Aprioritypatent/SE439367B/sv
Priority to DE2808837Aprioritypatent/DE2808837C2/de
Publication of JPS53147459UpublicationCriticalpatent/JPS53147459U/ja
Application grantedgrantedCritical
Publication of JPS5756145Y2publicationCriticalpatent/JPS5756145Y2/ja