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Application filedfiledCritical
Priority to JP1977023795UpriorityCriticalpatent/JPS6120870Y2/ja
Priority to CA296,534Aprioritypatent/CA1103298A/en
Priority to GB5706/78Aprioritypatent/GB1577275A/en
Priority to US05/877,286prioritypatent/US4259603A/en
Priority to DE19782807655prioritypatent/DE2807655A1/de
Priority to FR7805429Aprioritypatent/FR2382124A1/fr
Publication of JPS53118012UpublicationCriticalpatent/JPS53118012U/ja
Application grantedgrantedCritical
Publication of JPS6120870Y2publicationCriticalpatent/JPS6120870Y2/ja