USD259407SExpiredUtility

Corrosion testing instrument

41
Assignee: IPM CORPPriority: Dec 11, 1978Filed: Dec 11, 1978Granted: Jun 2, 1981
Est. expiryDec 11, 1998(expired)· nominal 20-yr term from priority
Inventors:Danny A. Pierce
41
PatentIndex Score
3
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a corrosion testing instrument, as shown and described.

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