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
CA841673A
Inventor
F. Helin Arthur
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.)
SPENCER CHEMICAL INTERNATIONAL
Original Assignee
SPENCER CHEMICAL INTERNATIONAL
Publication date
Application grantedgrantedCritical
Publication of CA841673ApublicationCriticalpatent/CA841673A/en