Oil well casing brush tool

Details Oil well casing brush tool Oil well casing brush tool

2000-03-14

2001-01-09

Siegel, Mitchell (Department: 2912)

Washing, cleaning, or drying machine

Washing, cleaning, or drying machine

Sewer or pipe cleaner

Design Patent

active

D0436237

CLAIM:
The ornamental design for a oil well casing brush tool, as shown and described.

REFERENCES:
patent: 3032114 (1962-05-01), Best
patent: 3827492 (1974-08-01), Hammon et al.
patent: 4438812 (1984-03-01), Hammon
patent: 4501322 (1985-02-01), Martin
patent: 5002139 (1991-03-01), Haussmann et al.
patent: 5570742 (1996-11-01), Reynolds et al.
patent: 5711046 (1998-01-01), Potter
patent: 5819353 (1998-10-01), Armell
patent: 5829521 (1998-11-01), Brown, Jr.
patent: 5947203 (1999-09-01), Brown, Jr.
patent: 2195378 (1998-04-01), None
patent: WO 94/29569 (1994-12-01), None

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