CN114038278A - 一种数学教学用几何模型展示装置 - Google Patents
一种数学教学用几何模型展示装置 Download PDFInfo
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- CN114038278A CN114038278A CN202111345794.1A CN202111345794A CN114038278A CN 114038278 A CN114038278 A CN 114038278A CN 202111345794 A CN202111345794 A CN 202111345794A CN 114038278 A CN114038278 A CN 114038278A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
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Application Number | Priority Date | Filing Date | Title |
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CN202111345794.1A CN114038278A (zh) | 2021-11-15 | 2021-11-15 | 一种数学教学用几何模型展示装置 |
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CN202111345794.1A CN114038278A (zh) | 2021-11-15 | 2021-11-15 | 一种数学教学用几何模型展示装置 |
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CN114038278A true CN114038278A (zh) | 2022-02-11 |
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CN202111345794.1A Withdrawn CN114038278A (zh) | 2021-11-15 | 2021-11-15 | 一种数学教学用几何模型展示装置 |
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CN (1) | CN114038278A (zh) |
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2021
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CB03 | Change of inventor or designer information | ||
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Inventor after: Chen Weijun Inventor after: Sun Li Inventor after: Zhang Huaxin Inventor after: Wang Huaijian Inventor after: Gao Dongfang Inventor before: Chen Weijun Inventor before: Sun Li Inventor before: Zhang Huaxin Inventor before: Wang Huaijian Inventor before: Gao Dongfang |
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WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220211 |