Roller backpack (detachable)

CN309508944SActive Publication Date: 2025-09-23邵林四
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Patent Information

Application Number
CN202430744882.7
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-23
Estimated Expiration
2039-11-25

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Abstract

1. The name of this design product: Pulley backpack (detachable). 2. Purpose of this design product: This design product is used as a school bag for storing items. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: the changing state diagram.
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