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
CA735266A
Inventor
B. Pateman Arthur
A. Leedham Samuel
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.)
Imperial Typewriter Co Ltd
Original Assignee
Imperial Typewriter Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA735266ApublicationCriticalpatent/CA735266A/en