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
CA636832A
Inventor
Huelsse Werner
Wolf Otto
Doerling Rolf
Schmidt Karl
Wenzel Walter
Hebenstreit Rudolf
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
Rolf Doerling
Werner Huelsse
L&C Steinmueller GmbH
Publication date
Application grantedgrantedCritical
Publication of CA636832ApublicationCriticalpatent/CA636832A/en