USD417278SExpiredUtility
Hearing test instrument
Est. expiryJan 20, 2019(expired)· nominal 20-yr term from priority
Inventors:Leo H. Eckstein
39
PatentIndex Score
7
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a hearing test instrument, as shown and described.
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