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
CA644804A
Inventor
L. Donahue Edwin
Okma Clarence
Udes Henry
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.)
D AND S PROCESSING Co
Original Assignee
D AND S PROCESSING Co
Publication date
Application grantedgrantedCritical
Publication of CA644804ApublicationCriticalpatent/CA644804A/en