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
CA073819A
Inventor
M. Fenner James
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.)
National Standard Co
Original Assignee
National Standard Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Standard CofiledCriticalNational Standard Co
Priority to CA146149ApriorityCriticalpatent/CA929085A/en
Application grantedgrantedCritical
Publication of CA922896ApublicationCriticalpatent/CA922896A/en