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Priority to JP6345576UpriorityCriticalpatent/JPS5548548Y2/ja
Priority to GB1938677Aprioritypatent/GB1559543A/en
Priority to DE19772722299prioritypatent/DE2722299A1/de
Priority to FR7715073Aprioritypatent/FR2352473A1/fr
Publication of JPS52153884UpublicationCriticalpatent/JPS52153884U/ja
Application grantedgrantedCritical
Publication of JPS5548548Y2publicationCriticalpatent/JPS5548548Y2/ja