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
CA913299A
Inventor
Shiotsu Tatsuzo
Adachi Toshio
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.)
LEBEN UTILITY CO
Original Assignee
LEBEN UTILITY CO
Publication date
Application grantedgrantedCritical
Publication of CA913299ApublicationCriticalpatent/CA913299A/en