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
CA624769A
Inventor
Bauereis 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.)
Heumann Ludwig and Co GmbH
Original Assignee
Heumann Ludwig and Co GmbH
Publication date
Application grantedgrantedCritical
Publication of CA624769ApublicationCriticalpatent/CA624769A/en