Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent
2000-05-31
2001-03-06
Barkai, Raphael (Department: 2913)
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
Design Patent
active
D0438437
CLAIM:
The ornamental design for a gas valve wrench, as shown and described.
REFERENCES:
patent: D. 224677 (1972-08-01), Lehnhard
patent: D. 248613 (1978-07-01), Pace et al.
patent: D. 287927 (1987-01-01), Zankich
patent: D. 333243 (1993-02-01), Brown
patent: 5806384 (1998-09-01), Foster
patent: 6098503 (2000-08-01), Hlinka
Barkai Raphael
Karich Eric
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