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
CA770488A
Inventor
L. Alexander Emmett
L. Bules Herschel
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.)
GEORGE E FAILING Co
Original Assignee
GEORGE E FAILING Co
Publication date
Application grantedgrantedCritical
Publication of CA770488ApublicationCriticalpatent/CA770488A/en