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
CA081024A
Inventor
Hoffmann Alfred
Rudiger Otto
Hirschfeld Dieter
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fried Krupp AGfiledCriticalFried Krupp AG
Priority to CA081024ApriorityCriticalpatent/CA920395A/en
Application grantedgrantedCritical
Publication of CA920395ApublicationCriticalpatent/CA920395A/en