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
CA633950A
Inventor
W. Dean Hubert
R. Thomas Edward
S. Touchman William
E. Clemens John
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.)
A Kimball Co
Original Assignee
A Kimball Co
Publication date
Application grantedgrantedCritical
Publication of CA633950ApublicationCriticalpatent/CA633950A/en