Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filedfiledCritical
Priority to JP1976063673UpriorityCriticalpatent/JPS5812381Y2/ja
Priority to GB20430/77Aprioritypatent/GB1569449A/en
Priority to DE19772722690prioritypatent/DE2722690A1/de
Publication of JPS52153822UpublicationCriticalpatent/JPS52153822U/ja
Application grantedgrantedCritical
Publication of JPS5812381Y2publicationCriticalpatent/JPS5812381Y2/ja
