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 27987
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.)
SGM CORP
WILLIAM A MORRISON
CHESTER ABEND
Original Assignee
SGM CORP
WILLIAM A MORRISON
CHESTER ABEND
Publication date
Priority to CA 27987priorityCriticalpatent/CA27987S/en
Application grantedgrantedCritical
Publication of CA27987SpublicationCriticalpatent/CA27987S/en