Supplementary box for telephone

Details Supplementary box for telephone Supplementary box for telephone

1997-10-17

1999-08-31

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

1403

Patent

active

D04133323

REFERENCES:
patent: D241949 (1976-10-01), Marchese
patent: D271394 (1983-11-01), Brown et al.
patent: D300028 (1989-02-01), To
patent: D306027 (1990-02-01), Gagnon
patent: D306859 (1990-03-01), Helstab et al.
patent: D312461 (1990-11-01), Ando
patent: D317920 (1991-07-01), Fuqua et al.
patent: D374674 (1996-10-01), Elkins et al.
patent: D387063 (1997-12-01), Hillenmayer et al.
patent: D388102 (1997-12-01), Yoneyama

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