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
CA893471A
Inventor
Eisenmann Josef
Borus Rudolf
Helgemeir Heinrich
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.)
ROBEL AND CO
Original Assignee
ROBEL AND CO
Publication date
Application grantedgrantedCritical
Publication of CA893471ApublicationCriticalpatent/CA893471A/en