Galvanic cells; acoustic conduits; sound transmitting apparatus; headphones; electric sockets, electric plugs, and electric contacts; batteries, electric, for vehicles; accumulators, electric, for vehicles; electromagnetic coils; computer mouse; optical fibers; light conducting filaments; electric conductors, electric mutual inductor; electric control panels; electric connectors; tripods for cameras; diaphragms for scientific apparatus, namely, acoustic membranes; mutual electrical inductors;...