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
CA886455A
Inventor
Van Zon Cornelis
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.)
Industriele Onderneming Wavin NV
Original Assignee
Industriele Onderneming Wavin NV
Publication date
Application grantedgrantedCritical
Publication of CA886455ApublicationCriticalpatent/CA886455A/en