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
CA636388A
Inventor
Haack Erich
Hagedorn Adolf
Aumueller Walter
Korger Gerhard
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.)
C F BOERHINGER AND SOEHNE GmbH
Original Assignee
C F BOERHINGER AND SOEHNE GmbH
Publication date
Application grantedgrantedCritical
Publication of CA636388ApublicationCriticalpatent/CA636388A/en