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.)
Mitsubishi Electric Corp
NTT Inc
Original Assignee
Mitsubishi Electric Corp
Nippon Telegraph and Telephone Corp
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 Mitsubishi Electric Corp, Nippon Telegraph and Telephone CorpfiledCriticalMitsubishi Electric Corp
Priority to JP12561086UpriorityCriticalpatent/JPH0746971Y2/ja
Publication of JPS6331607UpublicationCriticalpatent/JPS6331607U/ja
Application grantedgrantedCritical
Publication of JPH0746971Y2publicationCriticalpatent/JPH0746971Y2/ja