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
CA593916A
Inventor
A. Anderson Kenneth
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.)
American Machine and Metals Inc
Original Assignee
American Machine and Metals Inc
Publication date
Application grantedgrantedCritical
Publication of CA593916ApublicationCriticalpatent/CA593916A/en