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
CA734288A
Inventor
A. Fallscheer Paul
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.)
Dye Tube Developments Ltd
Original Assignee
Dye Tube Developments Ltd
Publication date
Application grantedgrantedCritical
Publication of CA734288ApublicationCriticalpatent/CA734288A/en