73353688
Mar 9, 1982
Jan 24, 1984
Electrotechnical and Electronic Apparatus and Instruments-Namely, Switching, Control, Regulating, Measuring, Inspection and Signal Transmitting Communicators for Duplex Operation and Intercommunication; Plugs and Sockets, Connection Terminals, Connector Boxes, Bridge Connectors and Bell Transformers
Electrical and Scientific Apparatus