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
CA898926A
Inventor
W. Graybill Howard
H. Albright Roy
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.)
ITE Imperial Corp
Original Assignee
ITE Imperial Corp
Publication date
Application grantedgrantedCritical
Publication of CA898926ApublicationCriticalpatent/CA898926A/en