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
CA848100A
Inventor
Iida Yoshio
Matsuoka Michio
Masuyama Takeshi
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.)
Panasonic Holdings Corp
Original Assignee
Michio Matsuoka
Matsushita Electric Industrial Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA848100ApublicationCriticalpatent/CA848100A/en