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
CA893470A
Inventor
B. Studebaker James
A. Minick George
D. Whittier 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.)
AR Wilfley and Sons Inc
Original Assignee
AR Wilfley and Sons Inc
Publication date
Application grantedgrantedCritical
Publication of CA893470ApublicationCriticalpatent/CA893470A/en