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
CA643951A
Inventor
T. Richmond James
A. S. Bristow Howard
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.)
Laporte Titanium Ltd
Original Assignee
Laporte Titanium Ltd
Publication date
Application grantedgrantedCritical
Publication of CA643951ApublicationCriticalpatent/CA643951A/en