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
CA615489A
Inventor
C. F. C. Richter Johan
J. Richter Ole
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.)
AKTIEBOLAGET
Original Assignee
AKTIEBOLAGET
Publication date
Application grantedgrantedCritical
Publication of CA615489ApublicationCriticalpatent/CA615489A/en