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Priority to JP5899075UpriorityCriticalpatent/JPS5548799Y2/ja
Priority to DE19762619318prioritypatent/DE2619318C3/de
Priority to US05/681,775prioritypatent/US4128363A/en
Priority to GB1782376Aprioritypatent/GB1545622A/en
Publication of JPS51138707UpublicationCriticalpatent/JPS51138707U/ja
Application grantedgrantedCritical
Publication of JPS5548799Y2publicationCriticalpatent/JPS5548799Y2/ja