Pay telephone

Details Pay telephone Pay telephone

1998-08-26

2000-08-22

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

1403

Patent

active

D04297105

REFERENCES:
patent: D233611 (1974-11-01), Kramer
patent: D305332 (1990-01-01), Schremmer et al.
patent: D306443 (1990-03-01), Su
patent: D324519 (1992-03-01), Chen
patent: D389817 (1998-01-01), Umestu
patent: 4815123 (1989-03-01), McGough
patent: 5483583 (1996-01-01), Chen

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