Coin phone

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

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1403

Patent

active

D04347463

REFERENCES:
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patent: D429710 (2000-08-01), Lalin
patent: 4974257 (1990-11-01), Ibanez et al.
patent: 5471529 (1995-11-01), Hsu
patent: 5483583 (1996-01-01), Chen

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