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Definition of telegraphone in English:

telegraphone

Pronunciation /tɪˈlɛɡrəfəʊn/

noun

(also telegraphon)
historical, rare

  • A device which records sounds received by telephone, so that they may be subsequently replayed or reproduced; specifically †(a) one which records sounds on to a cylinder; = telegraphophone (obsolete); (b) one which records sounds magnetically on to a metal ribbon.

Origin

Late 19th century (in an earlier sense). Apparently a blend of telegraph and -phone.