USD489356SExpiredUtility
Amplifier for audio system
Est. expiryFeb 21, 2023(expired)· nominal 20-yr term from priority
Inventors:Cheong Dong Cho
64
PatentIndex Score
17
Cited by
12
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for the amplifier for audio system, as shown and described.
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