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
CA690614A
Inventor
A. Catto Kenneth
H. Albert Campbell, Jr.
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.)
CODE-A-PHONE ELECTRONICS
Original Assignee
CODE-A-PHONE ELECTRONICS
Publication date
Application grantedgrantedCritical
Publication of CA690614ApublicationCriticalpatent/CA690614A/en