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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Priority to JP7671685UpriorityCriticalpatent/JPS61192138U/ja
Priority to US06/863,036prioritypatent/US4699587A/en
Priority to SE8602312Aprioritypatent/SE8602312L/
Priority to CA000509712Aprioritypatent/CA1269890A/en
Priority to CN86103476.7Aprioritypatent/CN1004725B/zh
Publication of JPS61192138UpublicationCriticalpatent/JPS61192138U/ja
Priority to CN87107772.8Aprioritypatent/CN1004900B/zh
