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
CA639027A
Inventor
W. Tibbetts Raymond
C. Tibbetts George
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.)
Tibbetts Industries Inc
Original Assignee
Tibbetts Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA639027ApublicationCriticalpatent/CA639027A/en