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
CA 3785
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.)
B B COLLINGS
STANLEY LIGHTFOOT
W H THORNTON
Original Assignee
B B COLLINGS
STANLEY LIGHTFOOT
W H THORNTON
Publication date
Priority to CA 3785priorityCriticalpatent/CA3785S/en
Application grantedgrantedCritical
Publication of CA3785SpublicationCriticalpatent/CA3785S/en