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
CA593985A
Inventor
L. Bowers Herbert
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.)
Permutit Co
Pfaudler Permutit Inc
Original Assignee
Permutit Co
Pfaudler Permutit Inc
Publication date
Application grantedgrantedCritical
Publication of CA593985ApublicationCriticalpatent/CA593985A/en