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 claimed from JP61028160Aexternal-prioritypatent/JPH0615208B2/en
Priority claimed from JP2815886Aexternal-prioritypatent/JPS62184838A/en
Priority claimed from JP2815986Aexternal-prioritypatent/JPS62184839A/en
Priority claimed from PCT/JP1987/000087external-prioritypatent/WO1987004975A1/en
Application filed by Tokyo Gas Co Ltd, Ashimori Ind Co LtdfiledCriticalTokyo Gas Co Ltd
Publication of NO874226LpublicationCriticalpatent/NO874226L/en
Publication of NO874226D0publicationCriticalpatent/NO874226D0/en
Publication of NO172149BpublicationCriticalpatent/NO172149B/en
Publication of NO172149CpublicationCriticalpatent/NO172149C/en