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.)
HAROLD ANDERSON CHAMBERS
HERBERT LLWELLYN SUMMERS
Original Assignee
HAROLD ANDERSON CHAMBERS
HERBERT LLWELLYN SUMMERS
Publication date
Application grantedgrantedCritical
Publication of CA412314ApublicationCriticalpatent/CA412314A/fr