USD477540SExpiredUtility

Sound level meter

75
Priority: Oct 4, 2002Filed: Oct 4, 2002Granted: Jul 22, 2003
Est. expiryOct 4, 2022(expired)· nominal 20-yr term from priority
Inventors:Li-Chuan Chen
75
PatentIndex Score
20
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a sound level meter, as shown.

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