Turn knob

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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D0457416

CLAIM:
The ornamental design for a turn knob, as shown and described.

REFERENCES:
patent: D132433 (1942-05-01), Pellegrin
patent: D141840 (1945-07-01), Stewart
patent: 2537782 (1951-01-01), Meyers
patent: 2957447 (1960-10-01), Pearce
patent: D450997 (2001-11-01), Brady
Stock Molded Plastic Knobs by Rogan; p. 1; knobs RB-31 and RB-131.

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