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
CA688423A
Inventor
B. Yorker Oscar
R. Pechman Jack
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.)
YORKER AND SONS
Original Assignee
YORKER AND SONS
Publication date
Application grantedgrantedCritical
Publication of CA688423ApublicationCriticalpatent/CA688423A/en