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
CA869924A
Inventor
Gebhardt Otto
Luderer Fred
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.)
MUELLER ERNST KG
Original Assignee
MUELLER ERNST KG
Publication date
Application grantedgrantedCritical
Publication of CA869924ApublicationCriticalpatent/CA869924A/en