USD420353SExpiredUtility
Tone controller
Est. expiryAug 24, 2018(expired)· nominal 20-yr term from priority
Inventors:Masatoshi Amai
66
PatentIndex Score
16
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a tone controller, as shown and described.
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