CN107584935B - 一种设有方便测量的教学圆规 - Google Patents
一种设有方便测量的教学圆规 Download PDFInfo
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- CN107584935B CN107584935B CN201710769649.3A CN201710769649A CN107584935B CN 107584935 B CN107584935 B CN 107584935B CN 201710769649 A CN201710769649 A CN 201710769649A CN 107584935 B CN107584935 B CN 107584935B
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CN107584935A CN107584935A (zh) | 2018-01-16 |
CN107584935B true CN107584935B (zh) | 2019-04-26 |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173076A (en) * | 1977-04-27 | 1979-11-06 | Gossage Thomas M | Scriber-compass with spring-loaded center punch |
CN2224095Y (zh) * | 1995-05-18 | 1996-04-10 | 孙利 | 吸盘式多功能教学圆规 |
CN2661451Y (zh) * | 2003-12-01 | 2004-12-08 | 袁悦 | 新型圆规 |
CN2848591Y (zh) * | 2005-11-29 | 2006-12-20 | 陈文龙 | 标尺圆规 |
CN202021970U (zh) * | 2011-04-01 | 2011-11-02 | 迟佳 | 粉笔套管 |
KR20120001173U (ko) * | 2010-08-11 | 2012-02-21 | 고대관 | 다용도 컴퍼스 |
CN204263786U (zh) * | 2014-11-13 | 2015-04-15 | 刘莉 | 一种教学用圆规 |
CN204977967U (zh) * | 2015-10-08 | 2016-01-20 | 浙江新昌职业技术学校 | 教学圆规 |
CN206327053U (zh) * | 2016-08-26 | 2017-07-14 | 刘润盛 | 一种教学用圆规 |
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2017
- 2017-08-31 CN CN201710769649.3A patent/CN107584935B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173076A (en) * | 1977-04-27 | 1979-11-06 | Gossage Thomas M | Scriber-compass with spring-loaded center punch |
CN2224095Y (zh) * | 1995-05-18 | 1996-04-10 | 孙利 | 吸盘式多功能教学圆规 |
CN2661451Y (zh) * | 2003-12-01 | 2004-12-08 | 袁悦 | 新型圆规 |
CN2848591Y (zh) * | 2005-11-29 | 2006-12-20 | 陈文龙 | 标尺圆规 |
KR20120001173U (ko) * | 2010-08-11 | 2012-02-21 | 고대관 | 다용도 컴퍼스 |
CN202021970U (zh) * | 2011-04-01 | 2011-11-02 | 迟佳 | 粉笔套管 |
CN204263786U (zh) * | 2014-11-13 | 2015-04-15 | 刘莉 | 一种教学用圆规 |
CN204977967U (zh) * | 2015-10-08 | 2016-01-20 | 浙江新昌职业技术学校 | 教学圆规 |
CN206327053U (zh) * | 2016-08-26 | 2017-07-14 | 刘润盛 | 一种教学用圆规 |
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Effective date of registration: 20201106 Address after: No.88, Shunwangcheng traditional Chinese medicine industrial park, juancheng County, Heze City, Shandong Province Patentee after: Shandong huazhan Teaching Instrument Co.,Ltd. Address before: 528400 Second Floor 204, No. 5 Xingye Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN NUODUN SCIENTIFIC RESEARCH TECHNOLOGY SERVICE Co.,Ltd. |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A teaching compass with convenient measurement Effective date of registration: 20220224 Granted publication date: 20190426 Pledgee: Shandong juancheng Rural Commercial Bank Co.,Ltd. Plaza sub branch Pledgor: Shandong huazhan Teaching Instrument Co.,Ltd. Registration number: Y2022980001844 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190426 Pledgee: Shandong juancheng Rural Commercial Bank Co.,Ltd. Plaza sub branch Pledgor: Shandong huazhan Teaching Instrument Co.,Ltd. Registration number: Y2022980001844 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A teaching compass with convenient measurement Granted publication date: 20190426 Pledgee: Shandong juancheng Rural Commercial Bank Co.,Ltd. Pledgor: Shandong huazhan Teaching Instrument Co.,Ltd. Registration number: Y2024980004958 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |