Sprocket
Claims
The ornamental design for a sprocket, as shown and described.
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Type: Grant
Filed: Sep 19, 2007
Date of Patent: Nov 17, 2009
Assignee: Tien Hsin Industries Co., Ltd. (Taichung Hsien)
Inventor: Douglas Chiang (Taichung Hsien)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Application Number: 29/284,958