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
CA592455A
Inventor
M. Klaus Ernst
G. Pleitgen Max
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.)
Betonbau GmbH
Original Assignee
Betonbau GmbH
Publication date
Application grantedgrantedCritical
Publication of CA592455ApublicationCriticalpatent/CA592455A/en