Sound amplifier

Details Sound amplifier Sound amplifier

2007-12-25

2007-12-25

Spear, Robert M. (Department: 2913)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Design Patent

active

29254683

CLAIM:
The ornamental design for a sound amplifier, as shown and described.

REFERENCES:
patent: D462951 (2002-09-01), Storti et al.
patent: D521991 (2006-05-01), Storti et al.
patent: D538798 (2007-03-01), Kimura et al.
patent: D541795 (2007-05-01), Kimura et al.
patent: D544860 (2007-06-01), Kimura et al.
patent: 1140765 (2002-05-01), None

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