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
CA242522A
Inventor
Soderstrom Oscar
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.)
Whiting and Davis Co
Original Assignee
Whiting and Davis Co
Publication date
Application grantedgrantedCritical
Publication of CA242522ApublicationCriticalpatent/CA242522A/en