electrophone (Q38931)

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Ssystem supplying audio connections from Theatres, Churches etc to private residential homes or offices via telephone wire

Ssystem supplying audio connections from Theatres, Churches etc to private residential homes or offices via telephone wire
Language Label Description Also known as
English
electrophone
Ssystem supplying audio connections from Theatres, Churches etc to private residential homes or offices via telephone wire

    Statements

    First use date
    1891
    0 references

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