USD251183SExpiredUtility

Electrical testing instrument

Assignee: PHIFER EARL COOPERPriority: Apr 8, 1977Filed: Apr 8, 1977Granted: Feb 27, 1979
Est. expiryApr 8, 1997(expired)· nominal 20-yr term from priority
Inventors:James Howard
61
PatentIndex Score
7
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for electrical testing instrument, substantially as shown.

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