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
CA799416A
Inventor
J. Saarivirta Matti
W. Taubenblat Pierre
Original Assignee
American Metal Climax Inc
Publication date
Application grantedgrantedCritical
Publication of CA799416ApublicationCriticalpatent/CA799416A/en