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
CA891096A
Inventor
L. Thorpe Merle
W. Harrington Kent
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.)
Humphreys Corp
Original Assignee
Humphreys Corp
Publication date
Application grantedgrantedCritical
Publication of CA891096ApublicationCriticalpatent/CA891096A/en