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
CA615453A
Inventor
N. Robineau Doria
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.)
POLY-SEAL INTERNATIONAL Ltd
Original Assignee
POLY-SEAL INTERNATIONAL Ltd
Publication date
Application grantedgrantedCritical
Publication of CA615453ApublicationCriticalpatent/CA615453A/en