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
CA705516A
Inventor
E. Kilburn John
Morrone Francis
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.)
INTERNATIONAL TOOL AND RESEARCH
Original Assignee
INTERNATIONAL TOOL AND RESEARCH
Publication date
Application grantedgrantedCritical
Publication of CA705516ApublicationCriticalpatent/CA705516A/en