Electronic phone book

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Patent

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Details

D18 7, D18 1, D18 2, D19 76, 1402

Patent

active

D04215990

REFERENCES:
patent: D274798 (1984-07-01), O'Hara et al.
patent: D310543 (1990-09-01), Brown
patent: D351854 (1994-10-01), Takahata
patent: D353614 (1994-12-01), Ohno et al.

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