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.)
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.)
GILBERT ANTHONY MULLINS HYDE
STC PLC
Original Assignee
GILBERT ANTHONY MULLINS HYDE
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GILBERT ANTHONY MULLINS HYDE, Standard Telephone and Cables PLCfiledCriticalGILBERT ANTHONY MULLINS HYDE
Publication of GB521005ApublicationCriticalpatent/GB521005A/en
Apparatus for effecting a graphic recording accompanying the electrical impulse transmission, more particularly for automatic or semi-automatic telephone apparatus