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
CA709263A
Inventor
L. Fredriksen Burton
Van Caro Ben
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.)
FELSENTHAL INSTRUMENTS Co
Original Assignee
FELSENTHAL INSTRUMENTS Co
Publication date
Application grantedgrantedCritical
Publication of CA709263ApublicationCriticalpatent/CA709263A/en