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
CA875976A
Inventor
A. Cornell Allen
C. Taube David
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.)
PIGGY BACK TRAILER RENTAL Ltd
Original Assignee
PIGGY BACK TRAILER RENTAL Ltd
Publication date
Application grantedgrantedCritical
Publication of CA875976ApublicationCriticalpatent/CA875976A/en