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
CA879428A
Inventor
Nelson Kurt
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.)
De Laval Separator Co
Original Assignee
Kurt Nelson
De Laval Separator Co
Publication date
Application grantedgrantedCritical
Publication of CA879428ApublicationCriticalpatent/CA879428A/en