Telephone answering machine

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Patent

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D1403

Patent

active

D02595613

REFERENCES:
patent: D227784 (1973-07-01), Janda
patent: D236134 (1975-07-01), Christie
patent: D238585 (1976-01-01), Darwood
patent: D247851 (1978-05-01), Muller
patent: 2703821 (1955-03-01), Kopp et al.
Radio Shack, Cat. 289, .COPYRGT.1977, p. 63, Telephone Answering Device, top of page.

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