Interchangeable book chassis
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Any broken lines, colors, and/or patterns in the drawing are for illustrative purposes only and form no part of the claimed design.
Claims
The ornamental design for the interchangeable book chassis, as shown and described.
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Type: Grant
Filed: Oct 31, 2012
Date of Patent: Jun 18, 2013
Assignee: Leo Paper Bags Manufacturing (1982) Limited (Kowloon, Hong Kong)
Inventors: Cannie Lam (Kowloon), Kin Fat Pang (Kowloon)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Kathleen M Sims
Application Number: 29/436,061