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.)
Expired
Application number
CA802475A
Inventor
Nagano Masahiko
Watanabe Yasuaki
Ohtsu Tadanori
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Publication date
Application grantedgrantedCritical
Publication of CA802475ApublicationCriticalpatent/CA802475A/en