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
CA619789A
Inventor
S. Morgan Porter
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.)
MORGAN DEVELOPMENT LABORATORIES
Original Assignee
MORGAN DEVELOPMENT LABORATORIES
Publication date
Application grantedgrantedCritical
Publication of CA619789ApublicationCriticalpatent/CA619789A/en