Pay phone

Details Pay phone Pay phone

1998-07-15

1999-04-13

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

1403

Patent

active

D04080335

REFERENCES:
patent: D202110 (1965-08-01), Wann
patent: D233352 (1974-10-01), Krammer et al.
patent: D297638 (1988-09-01), Chu
patent: D320206 (1991-09-01), Graves et al.
patent: D396465 (1998-07-01), Chien et al.
patent: D396858 (1998-08-01), Chien et al.
patent: 3511939 (1970-05-01), Aikawa
patent: 4736408 (1988-04-01), Chen
patent: 4991202 (1991-02-01), Su
Japan Telecommunications Review, Apr. 1976, p. 73, Figure 3 at top.

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