Plug of pipe coupling

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting

Design Patent

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Details

CD23S260000, CD23S233000

Design Patent

active

D0463537

CLAIM:
The ornamental design for a plug of pipe coupling, as shown and described.

REFERENCES:
patent: D325775 (1992-04-01), Hayes
patent: D412738 (1999-08-01), Kuwabara
patent: D435635 (2000-12-01), Taneya
patent: D442267 (2001-05-01), Kouda

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