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
CA847403A
Inventor
A. Wilkinson Horace
A. R. Wilkinson Theodore
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.)
Monier Research and Development Pty Ltd
Original Assignee
Horace A Wilkinson
Theodore A R Wilkinson
Monier Research and Development Pty Ltd
Publication date
Application grantedgrantedCritical
Publication of CA847403ApublicationCriticalpatent/CA847403A/en