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
CA739727A
Inventor
S. P. Ingemansson Nils
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 R ANDERSSON AND CO AB
Original Assignee
J R ANDERSSON AND CO AB
Publication date
Application grantedgrantedCritical
Publication of CA739727ApublicationCriticalpatent/CA739727A/en