USD476910SExpiredUtility
Acoustic level calibrator
Priority: Sep 24, 2002Filed: Sep 24, 2002Granted: Jul 8, 2003
Est. expirySep 24, 2022(expired)· nominal 20-yr term from priority
Inventors:Li-Chuan Chen
32
PatentIndex Score
1
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a acoustic level calibrator, as shown and described.
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