Mathematical slide rule

CN310214426SActive Publication Date: 2026-09-18JINGYUAN VOCATIONAL SECONDARY SCHOOL
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Patent Information

Application Number
CN202630202658.4
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2026-04-27
Publication Date
2026-09-18
Estimated Expiration
2041-04-27

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Abstract

1. Name of the designed product: mathematical abacus (mathematical teaching aid). 2. Use of the designed product: for mathematics teaching. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
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