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
CA897043A
Inventor
A. E. Bernheim Serge
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.)
REDLAND PIPES Ltd
Original Assignee
REDLAND PIPES Ltd
Publication date
Application grantedgrantedCritical
Publication of CA897043ApublicationCriticalpatent/CA897043A/en