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
CA865174A
Inventor
El-Chahawi Moustafa
Richtzenhain Hermann
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
Publication date
Application grantedgrantedCritical
Publication of CA865174ApublicationCriticalpatent/CA865174A/en