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.)
Tokyo Metropolitan Government
Original Assignee
Tokyo Metropolitan Government
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 Tokyo Metropolitan GovernmentfiledCriticalTokyo Metropolitan Government
Priority to JP11990982UpriorityCriticalpatent/JPS5925431U/ja
Publication of JPS5925431UpublicationCriticalpatent/JPS5925431U/ja
Application grantedgrantedCritical
Publication of JPS6231857Y2publicationCriticalpatent/JPS6231857Y2/ja