Utility knife

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

Design Patent

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Design Patent

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D0508838

CLAIM:
The ornamental design for the utility knife, as shown and described.

REFERENCES:
patent: 3965575 (1976-06-01), Stunger
patent: 4713884 (1987-12-01), Dunnagan
patent: D300600 (1989-04-01), High
patent: 4821418 (1989-04-01), Windhager
patent: 5208984 (1993-05-01), Negus
patent: D344155 (1994-02-01), Ueno et al.
patent: D379293 (1997-05-01), Schultz
patent: D391821 (1998-03-01), Schultz
patent: 6487948 (2002-12-01), Alfi

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