Telephone amplifier switch box

Details Telephone amplifier switch box Telephone amplifier switch box

2002-02-28

2003-03-04

Asch, Jeffrey (Department: 2913)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

CD14S243000

Design Patent

active

D0471182

CLAIM:
The ornamental design for a telephone amplifier switch box, as shown and described.

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