Telephone sets; automatic telegraph apparatus; manual telegraph apparatus; facsimile machines; carrier-frequency repeaters; television receivers; television transmitters; radio receivers; radio transmitters; compact disc players; juke boxes; tape recorders; electric phonographs; record players; video cameras; videodisc players; video recorders; magnetic tape erasers; magnetic tape cleaners; magnetic head erasers; magnetic head cleaners; speakers; fuses for communication apparatus; change-over...

automatic telephone exchange apparatus; manual telephone exchange apparatus; telephone sets; other telephone apparatus; teletypewriters; automatic telegraph apparatus; phototelegraphy apparatus; manual telegraph apparatus; trunk exchange apparatus; facsimile machines; other wire communication apparatus; audio frequency transmission apparatus; cable-type carrier-frequency apparatus; power-line-type frequency-carrier apparatus; open-wire-type frequency-carrier apparatus; carrier-frequency repea...