Telephone set

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

Patent

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Details

D14142

Patent

active

D03227855

REFERENCES:
patent: D237505 (1975-11-01), Thies
patent: D248649 (1978-07-01), Breger
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patent: D294825 (1988-03-01), Coons et al.
patent: D300217 (1989-03-01), Iino
patent: D303668 (1989-09-01), Kwan
patent: D303894 (1985-07-01), Marshall
patent: D307903 (1990-05-01), Davey

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