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Application filedfiledCritical
Priority to JP8766381UpriorityCriticalpatent/JPS6235152Y2/ja
Priority to US06/388,331prioritypatent/US4452409A/en
Priority to DE19823222310prioritypatent/DE3222310A1/de
Publication of JPS57198754UpublicationCriticalpatent/JPS57198754U/ja
Application grantedgrantedCritical
Publication of JPS6235152Y2publicationCriticalpatent/JPS6235152Y2/ja
