Mathematical drawing ruler

CN309319636SActive Publication Date: 2025-06-03李柯莹
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Patent Information

Application Number
CN202430638217.X
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-06-03
Estimated Expiration
2039-10-10

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Abstract

1. Name of the design product: Mathematical drawing ruler. 2. Use of the design product: For mathematical drawing. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Stereogram.
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