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
CA078130A
Inventor
W. Nutter Raymond
M. Sitter Frederick
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.)
VAN-AIR
Original Assignee
VAN-AIR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VAN-AIRfiledCriticalVAN-AIR
Application grantedgrantedCritical
Publication of CA924650ApublicationCriticalpatent/CA924650A/en