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
CA685788A
Inventor
H. Borden Joseph
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.)
Toledo Scale Corp
Original Assignee
Toledo Scale Corp
Publication date
Application grantedgrantedCritical
Publication of CA685788ApublicationCriticalpatent/CA685788A/en