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
CA885196A
Inventor
A. Brawner Frederick
H. Smith Lawrence
L. Pringle William
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.)
Lee Radke Associates Inc
Original Assignee
Lee Radke Associates Inc
Publication date
Application grantedgrantedCritical
Publication of CA885196ApublicationCriticalpatent/CA885196A/en