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
CA811976A
Inventor
W. Harriger John
F. Z. Lee Winston
L. Smouse Edmund
W. Fisher Harry
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.)
Rockwell Manufacturing Co
Original Assignee
Rockwell Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA811976ApublicationCriticalpatent/CA811976A/en