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
CA813570A
Inventor
Erb Ernst
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.)
ERBA MASCHINENBAU AG
Original Assignee
ERBA MASCHINENBAU AG
Publication date
Application grantedgrantedCritical
Publication of CA813570ApublicationCriticalpatent/CA813570A/en