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
CA875677A
Inventor
Sano Takahisa
Ichikawa Hidekazu
Yoshida Ryoji
Shinohara Hiroaki
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.)
Foster Electric Co Ltd
Original Assignee
Foster Electric Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA875677ApublicationCriticalpatent/CA875677A/en