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
CA591148A
Inventor
M. Daily Arthur
H. Budd Wilbert
B. Arisman Mervin
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.)
CHICAGO TELEPHONE SUPPLY Corp
Original Assignee
CHICAGO TELEPHONE SUPPLY Corp
Publication date
Application grantedgrantedCritical
Publication of CA591148ApublicationCriticalpatent/CA591148A/en