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
CA713224A
Inventor
E. Pearson Albert
C. Higgins Edward
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.)
MIDLAND TRANSFORMER Co Ltd
Original Assignee
MIDLAND TRANSFORMER Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA713224ApublicationCriticalpatent/CA713224A/en