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Priority to JP4803873UpriorityCriticalpatent/JPS5252571Y2/ja
Priority to US453052Aprioritypatent/US3876860A/en
Priority to DE19742413968prioritypatent/DE2413968C3/de
Priority to FR7409942Aprioritypatent/FR2222716B1/fr
Priority to GB1290374Aprioritypatent/GB1467654A/en
Publication of JPS49148917UpublicationCriticalpatent/JPS49148917U/ja
Application grantedgrantedCritical
Publication of JPS5252571Y2publicationCriticalpatent/JPS5252571Y2/ja