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
CA840386A
Inventor
A. Levinson Arthur
B. Basa Kenneth
C. Radtke Lawrence
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.)
HB Taylor Co
Original Assignee
HB Taylor Co
Publication date
Application grantedgrantedCritical
Publication of CA840386ApublicationCriticalpatent/CA840386A/en