USD247161SExpiredUtility

Sound level meter

80
Assignee: DONALDSON CO INCPriority: Jan 30, 1976Filed: Jan 30, 1976Granted: Feb 7, 1978
Est. expiryJan 30, 1996(expired)· nominal 20-yr term from priority
Inventors:Mario F. FernandezBruce J. Rubin
80
PatentIndex Score
15
Cited by
2
References
1
Claims

Claims

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

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