mathematical check board

CN310206423SActive Publication Date: 2026-09-15乌兰察布职业学院
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Patent Information

Application Number
CN202630133909.8
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2026-03-25
Publication Date
2026-09-15
Estimated Expiration
2041-03-25

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Abstract

1. Name of the designed product: mathematical checking board. 2. Use of the designed product: writing board for mathematical checking. 3. Designing points of the designed product: in shape. 4. Picture or photo best indicating the designing points: perspective view 1.
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