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
CA719227A
Inventor
Eikermann Hans
Betzing Hans
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.)
A NATTERMANN AND CIE
Original Assignee
A NATTERMANN AND CIE
Publication date
Application grantedgrantedCritical
Publication of CA719227ApublicationCriticalpatent/CA719227A/en