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.)
Filing date
Publication date
Priority claimed from JP57140595Aexternal-prioritypatent/JPS5930702A/ja
Application filed by Toyo Engineering CorpfiledCriticalToyo Engineering Corp
Priority to IN537/DEL/83ApriorityCriticalpatent/IN160172B/en
Publication of IN160172BpublicationCriticalpatent/IN160172B/en