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
CA604433A
Inventor
Geiseler Gerhard
Knothe Wolfgang
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.)
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke Walter Ulbright Germany VEB
Publication date
Application grantedgrantedCritical
Publication of CA604433ApublicationCriticalpatent/CA604433A/en