Metal pipe connectors; devices for joining pipes, namely, metal pipe couplings and joints; pipe muffs of metal; cable junction sleeves of metal and parts thereof

[ Electric contacts; electric switches; polarity inverters; crossbar distributors, namely, cross-bar connectors; ] electrical plugs and sockets for electrical connections; electric couplings; apparatus and installations and parts thereof for the transmission of data and signals, namely, connectors for optical cables; electrical connectors; electrical plug device enabling connection and disconnection of power and control cables; plug adaptors; electrical plugs and sockets; plug connectors; plug-in connectors; cable connectors; fiber optic connectors; electrical connector housings; optical connector housings; electrical power connectors; wire connectors for electricity; contact carriers for electric connectors; contact carriers for optical connectors; electrical connectors; electricity junction boxes; electric measuring apparatus and accessories thereof, namely, clamp meters for measuring electrical signals, test leads with plugs on both ends for measuring electrical signals, test leads for measuring electrical signals, electrical extension leads, electrical wire binding posts, socket strips, test probes for measuring electrical signals, probes for measuring high-frequency electrical signals, probes being part of electrical measuring instruments, not being medical instruments, probes for electric sensors, not for medical purposes, active and passive probes for measuring electrical signals, test clips, test clip leads, test plugs, adapter leads, clip-on plugs, lead couplers, magnetic contact adapters, reducer adapters, plug adapters, fuse adapters, screw-in adapters, screw-clamping adapters, cable lug adapters, adapters for relays, adapters for main sockets, BNC adapters, BNC connectors and collet pliers for measuring electric signals; active and passive probes for recording, processing, and transmitting electrical signals