USD427930SExpiredUtility
Electromagnetic sound generator
Est. expiryNov 12, 2019(expired)· nominal 20-yr term from priority
Inventors:Keita Watanabe
44
PatentIndex Score
5
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an electromagnetic sound generator, as shown and described.
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