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
CA832324A
Inventor
A. Wallers Richard
C. Haspert John
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.)
SMITH INDUSTRIES INTERNATIONAL
Original Assignee
SMITH INDUSTRIES INTERNATIONAL
Publication date
Application grantedgrantedCritical
Publication of CA832324ApublicationCriticalpatent/CA832324A/en