Mathematical abacus (mathematical teaching aid)

CN309417399SActive Publication Date: 2025-08-01陈计强
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Patent Information

Application Number
CN202430772091.5
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-08-01
Estimated Expiration
2039-12-05

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Abstract

1. Name of the Design Product: Mathematical Abacus (Mathematical Teaching Aid). 2. Use of the Design Product: For mathematical teaching. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.
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