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
CA789305A
Inventor
Grunwald Georg
Otto Hans-Dietrich
Borgwaldt Heinz-Eric
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.)
HEINR BORGWALDT
Original Assignee
HEINR BORGWALDT
Publication date
Application grantedgrantedCritical
Publication of CA789305ApublicationCriticalpatent/CA789305A/en