Multi-diameter pipeline cleaner or “pig”

Details Multi-diameter pipeline cleaner or “pig” Multi-diameter pipeline cleaner or “pig”

2002-07-09

2004-06-08

Zarfas, Louis S. (Department: 2914)

Washing, cleaning, or drying machine

Washing, cleaning, or drying machine

Sewer or pipe cleaner

Design Patent

active

D0491325

CLAIM:
The ornamental design for multi-diameter pipeline cleaner or “pig”, as shown and described.

REFERENCES:
patent: D315621 (1991-03-01), Laymon et al.
patent: 5625917 (1997-05-01), Hawkins
patent: 6510860 (2003-01-01), Kihs
patent: 6618873 (2003-09-01), Mulgrew et al.

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