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
CA721122A
Inventor
Bonninger Gustav
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.)
ERBO-MASCHINENBAU ERLEY AND BONNINGER
Original Assignee
ERBO-MASCHINENBAU ERLEY AND BONNINGER
Publication date
Application grantedgrantedCritical
Publication of CA721122ApublicationCriticalpatent/CA721122A/en