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 - Lifetime
Application number
CA883710A
Inventor
B. Fitch Elliot
J. Roberts Elliott
C. Weber William
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.)
Dorr Oliver Inc
Original Assignee
Dorr Oliver Inc
Publication date
Application grantedgrantedCritical
Publication of CA883710ApublicationCriticalpatent/CA883710A/en