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
CA679097A
Inventor
G. Hough Frank
M. Peterson Robert
H. Gilson Wallace
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.)
HY-DYNAMIC Co
Original Assignee
HY-DYNAMIC Co
Publication date
Application grantedgrantedCritical
Publication of CA679097ApublicationCriticalpatent/CA679097A/en