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
CA697251A
Inventor
John H. Walsh
Hugh P. Hudson
Walter J. Riva
Original Assignee
Canada, Represented By Ministerof Mines And Technical Surveys AS
CANMORE MINES Ltd
Publication date
Application grantedgrantedCritical
Publication of CA697251ApublicationCriticalpatent/CA697251A/en