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
CA627742A
Inventor
Waas Heinrich
Grim Otto
Ehlers Johann
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.)
J G HITZLER Firma
Original Assignee
J G HITZLER Firma
Publication date
Application grantedgrantedCritical
Publication of CA627742ApublicationCriticalpatent/CA627742A/en