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
CA613695A
Inventor
Muller Herbert
Wilke Gunther
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.)
Studiengesellschaft Kohle gGmbH
Original Assignee
Studiengesellschaft Kohle gGmbH
Publication date
Application grantedgrantedCritical
Publication of CA613695ApublicationCriticalpatent/CA613695A/en