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.)
Osaka Gas Co Ltd
Tokyo Gas Co Ltd
Toho Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
Tokyo Gas Co Ltd
Toho Gas 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 Osaka Gas Co Ltd, Tokyo Gas Co Ltd, Toho Gas Co LtdfiledCriticalOsaka Gas Co Ltd
Priority to JP9276088UpriorityCriticalpatent/JPH062112Y2/ja
Publication of JPH0214030UpublicationCriticalpatent/JPH0214030U/ja
Application grantedgrantedCritical
Publication of JPH062112Y2publicationCriticalpatent/JPH062112Y2/ja
