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
CA597002A
Inventor
J. Ewald Fred
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.)
TUTTLE AND KIFT
Original Assignee
TUTTLE AND KIFT
Publication date
Application grantedgrantedCritical
Publication of CA597002ApublicationCriticalpatent/CA597002A/en