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
CA861576A
Inventor
Wilke Gunther
Heimbach Paul
Brenner Wolf-Bernd
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 CA861576ApublicationCriticalpatent/CA861576A/en