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.)
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.)
Standard Register Co
Original Assignee
Standard Register Co
Publication date
Application grantedgrantedCritical
Publication of CA544640ApublicationCriticalpatent/CA544640A/en