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
CA791315A
Inventor
D. Short Herbert
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.)
Lacal Industries Ltd
Original Assignee
Lacal Industries Ltd
Publication date
Application grantedgrantedCritical
Publication of CA791315ApublicationCriticalpatent/CA791315A/en