USD257121SExpiredUtility

Improved plumbing tool

Assignee: STRINGER EDMONDPriority: Aug 4, 1977Filed: Aug 4, 1977Granted: Sep 30, 1980
Est. expiryAug 4, 1997(expired)· nominal 20-yr term from priority
Inventors:Edmond Stringer
13
PatentIndex Score
1
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an improved plumbing tool, as shown and described.

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