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
CA834807A
Inventor
H. Walter Alexander
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.)
NORDSTROM AND SJOGREN AB
Original Assignee
NORDSTROM AND SJOGREN AB
Publication date
Application grantedgrantedCritical
Publication of CA834807ApublicationCriticalpatent/CA834807A/en