USD1122128SUtility

Instrument for testing the roundness of the inner wall of a pipe or other hollow cylinder

2
Priority: —Filed: Sep 1, 2021Granted: Apr 14, 2026
2
PatentIndex Score
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Cited by
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References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for an instrument for testing the roundness of the inner wall of a pipe or other hollow cylinder, as shown and described.

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