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
CA770230A
Inventor
A. R. Peddle Edward
W. Ward Peter
H. Bray Frederick
D. Simmons Brian
E. Mann Victor
D. Martin Alfred
S. Douglas William
D. Allum Robin
R. F. Harris Lionel
G. Knight Ronald
F. B. Speed Richard
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.)
HER MAJESTY'S POSTMASTER GENERAL OF GREAT BRITAIN
Associated Electrical Industries Ltd
Automatic Telephone and Electric Co Ltd
Ericsson Telephones Ltd
General Electric Co PLC
STC PLC
Original Assignee
HER MAJESTY'S POSTMASTER GENERAL OF GREAT BRITAIN
Associated Electrical Industries Ltd
Automatic Telephone and Electric Co Ltd
Ericsson Telephones Ltd
General Electric Co PLC
Standard Telephone and Cables PLC
Publication date
Application grantedgrantedCritical
Publication of CA770230ApublicationCriticalpatent/CA770230A/en