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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niigata Engineering Co Ltd
Original Assignee
Niigata Engineering Co Ltd
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
Application filed by Niigata Engineering Co LtdfiledCriticalNiigata Engineering Co Ltd
Priority to JP9297381ApriorityCriticalpatent/JPS57207686A/ja
Priority to CA000405198Aprioritypatent/CA1184457A/en
Priority to AU84980/82Aprioritypatent/AU545564B2/en
Publication of JPS57207686ApublicationCriticalpatent/JPS57207686A/ja
Publication of JPH026429B2publicationCriticalpatent/JPH026429B2/ja