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Application filedfiledCritical
Priority to JP11461674UpriorityCriticalpatent/JPS543657Y2/ja
Priority to DE2542174Aprioritypatent/DE2542174C3/de
Priority to GB38842/75Aprioritypatent/GB1483849A/en
Publication of JPS5141973UpublicationCriticalpatent/JPS5141973U/ja
Priority to US05/757,684prioritypatent/US4092614A/en
Application grantedgrantedCritical
Publication of JPS543657Y2publicationCriticalpatent/JPS543657Y2/ja