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
CA831776A
Inventor
A. Cross Douglas
W. Bird Garnet
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.)
IRIS M CROSS
STANLEY C B CROSS
Original Assignee
IRIS M CROSS
STANLEY C B CROSS
Publication date
Application grantedgrantedCritical
Publication of CA831776ApublicationCriticalpatent/CA831776A/en