USD247966SExpiredUtility
Portable voice amplifier
Est. expiryJun 10, 1996(expired)· nominal 20-yr term from priority
Inventors:George J. Sieler
47
PatentIndex Score
6
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a portable voice amplifier, as shown.
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