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
CA637269A
Inventor
E. Gaenzle Luther
Original Assignee
Armstrong Cork Co
Publication date
Application grantedgrantedCritical
Publication of CA637269ApublicationCriticalpatent/CA637269A/en