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
Priority claimed from JP2661890Uexternal-prioritypatent/JPH03117474U/ja
Priority claimed from JP2661790Uexternal-prioritypatent/JPH03117473U/ja
Priority claimed from JP1990026616Uexternal-prioritypatent/JPH0735567Y2/en
Application filed by Asahi Denka Kogyo KkfiledCriticalAsahi Denka Kogyo Kk
Priority to SG162694ApriorityCriticalpatent/SG162694G/en
Publication of SG162694GpublicationCriticalpatent/SG162694G/en