black keys

CN309695559SActive Publication Date: 2025-12-23INNER MONGOLIA XINLONGHASI MUSICAL INSTR CO LTD
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Patent Information

Application Number
CN202530329931.5
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-12-23
Estimated Expiration
2040-06-10

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Abstract

1. Name of the designed product: piano key (black key). 2. Use of the designed product: piano key. 3. Design points of the designed product: the shape, pattern and their combination. 4. Picture or photo showing the design points: perspective view. 5. The design contains color.
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