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
CA608586A
Inventor
Liang Cho Chi
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.)
ELECTRO-WATT ELECTRICAL AND INDUSTRIAL MANAGEMENT Co Ltd
Original Assignee
ELECTRO-WATT ELECTRICAL AND INDUSTRIAL MANAGEMENT Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA608586ApublicationCriticalpatent/CA608586A/en