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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 JP10773082UpriorityCriticalpatent/JPS5912247U/ja
Priority to US06/496,024prioritypatent/US4563663A/en
Priority to DE3320000Aprioritypatent/DE3320000C2/de
Publication of JPS5912247UpublicationCriticalpatent/JPS5912247U/ja
Application grantedgrantedCritical
Publication of JPS6213319Y2publicationCriticalpatent/JPS6213319Y2/ja