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
CA883407A
Inventor
Weichert Willi
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.)
Robert Krause GmbH and Co KG
Original Assignee
Robert Krause GmbH and Co KG
Publication date
Application grantedgrantedCritical
Publication of CA883407ApublicationCriticalpatent/CA883407A/en