CN106915186A - 自动曲线作图教具 - Google Patents
自动曲线作图教具 Download PDFInfo
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- CN106915186A CN106915186A CN201710281233.7A CN201710281233A CN106915186A CN 106915186 A CN106915186 A CN 106915186A CN 201710281233 A CN201710281233 A CN 201710281233A CN 106915186 A CN106915186 A CN 106915186A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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CN201710281233.7A CN106915186B (zh) | 2017-04-26 | 2017-04-26 | 自动曲线作图教具及曲线作图方法 |
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CN201710281233.7A CN106915186B (zh) | 2017-04-26 | 2017-04-26 | 自动曲线作图教具及曲线作图方法 |
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CN106915186A true CN106915186A (zh) | 2017-07-04 |
CN106915186B CN106915186B (zh) | 2018-03-09 |
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CN201710281233.7A Active CN106915186B (zh) | 2017-04-26 | 2017-04-26 | 自动曲线作图教具及曲线作图方法 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2058884U (zh) * | 1989-04-20 | 1990-07-04 | 肖星平 | 圆规量角三角尺 |
CN2122741U (zh) * | 1992-04-22 | 1992-11-25 | 曹光全 | 一种多功能绘图工具规度尺 |
CN202716635U (zh) * | 2012-08-23 | 2013-02-06 | 沈蕴钰 | 一种极坐标式平面曲线画图器 |
CN103879205A (zh) * | 2014-04-08 | 2014-06-25 | 张松吉 | 多功能极坐标仪 |
CN106313973A (zh) * | 2016-08-26 | 2017-01-11 | 杨建锋 | 一种教育用便携式数学教学用具 |
CN106394078A (zh) * | 2016-10-25 | 2017-02-15 | 钟贵洪 | 一种量角圆规尺 |
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2017
- 2017-04-26 CN CN201710281233.7A patent/CN106915186B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2058884U (zh) * | 1989-04-20 | 1990-07-04 | 肖星平 | 圆规量角三角尺 |
CN2122741U (zh) * | 1992-04-22 | 1992-11-25 | 曹光全 | 一种多功能绘图工具规度尺 |
CN202716635U (zh) * | 2012-08-23 | 2013-02-06 | 沈蕴钰 | 一种极坐标式平面曲线画图器 |
CN103879205A (zh) * | 2014-04-08 | 2014-06-25 | 张松吉 | 多功能极坐标仪 |
CN106313973A (zh) * | 2016-08-26 | 2017-01-11 | 杨建锋 | 一种教育用便携式数学教学用具 |
CN106394078A (zh) * | 2016-10-25 | 2017-02-15 | 钟贵洪 | 一种量角圆规尺 |
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CN106915186B (zh) | 2018-03-09 |
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Effective date of registration: 20201202 Address after: Unit 502, unit 4, building C11, Xuefu garden, Kaiyuan Road, Yicheng District, Zhumadian City, Henan Province Patentee after: Li Dong Address before: Room 2513, Huayuan Jinyue Center office building, 415 Taihua North Road, Weiyang District, Xi'an City, Shaanxi Province 710000 Patentee before: Jiuer (Xi'an) Intellectual Property Service Co.,Ltd. Effective date of registration: 20201202 Address after: Room 2513, Huayuan Jinyue Center office building, 415 Taihua North Road, Weiyang District, Xi'an City, Shaanxi Province 710000 Patentee after: Jiuer (Xi'an) Intellectual Property Service Co.,Ltd. Address before: 450000 No. 1 Xianghe Road, Xinzheng, Henan, Zhengzhou, Longhu Patentee before: HENAN INSTITUTE OF ENGINEERING |
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Effective date of registration: 20211214 Address after: 463700 tongshanhu Avenue and Xinxing Road, Biyang County, Zhumadian City, Henan Province Patentee after: Henan runling Information Technology Co.,Ltd. Address before: 463000 Room 502, unit 4, building C11, Xuefu garden, Kaiyuan Road, Yicheng District, Zhumadian City, Henan Province Patentee before: Li Dong |