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
CA885869A
Inventor
D. Baumann Hans
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.)
Masoneilan International Inc
Original Assignee
Masoneilan International Inc
Publication date
Application grantedgrantedCritical
Publication of CA885869ApublicationCriticalpatent/CA885869A/en