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
CA704427A
Inventor
F. Poole Robert
C. Ward Corliss
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.)
CHISHOLM BOYD AND WHITE Co
Original Assignee
CHISHOLM BOYD AND WHITE Co
Publication date
Application grantedgrantedCritical
Publication of CA704427ApublicationCriticalpatent/CA704427A/en