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
CA722459A
Inventor
E. Mathews Lewis
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.)
JUSWEL CO
Original Assignee
JUSWEL CO
Publication date
Application grantedgrantedCritical
Publication of CA722459ApublicationCriticalpatent/CA722459A/en