Electronic calculator having the functions of telephone book, ad

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

Patent

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Details

D14100, 1801

Patent

active

D03936554

REFERENCES:
patent: D351853 (1994-10-01), Ido
patent: D353614 (1994-12-01), Ohno et al.
patent: D353827 (1994-12-01), Shigemura et al.
patent: D354073 (1995-01-01), Shigemura
patent: D363505 (1995-10-01), Takahata
patent: D365842 (1996-01-01), Nakatsuka et al.

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