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
CA624990A
Inventor
G. Smith Benjamin
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.)
CHEMICAL AND INDUSTRIAL Corp
Original Assignee
CHEMICAL AND INDUSTRIAL Corp
Publication date
Application grantedgrantedCritical
Publication of CA624990ApublicationCriticalpatent/CA624990A/en