CN102512815B - 棒球悬浮式供球及挥棒速度监测装置 - Google Patents
棒球悬浮式供球及挥棒速度监测装置 Download PDFInfo
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- CN102512815B CN102512815B CN201110447872.9A CN201110447872A CN102512815B CN 102512815 B CN102512815 B CN 102512815B CN 201110447872 A CN201110447872 A CN 201110447872A CN 102512815 B CN102512815 B CN 102512815B
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CN201110447872.9A CN102512815B (zh) | 2011-12-28 | 2011-12-28 | 棒球悬浮式供球及挥棒速度监测装置 |
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CN201110447872.9A CN102512815B (zh) | 2011-12-28 | 2011-12-28 | 棒球悬浮式供球及挥棒速度监测装置 |
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CN102512815A CN102512815A (zh) | 2012-06-27 |
CN102512815B true CN102512815B (zh) | 2014-03-19 |
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CN201110447872.9A Expired - Fee Related CN102512815B (zh) | 2011-12-28 | 2011-12-28 | 棒球悬浮式供球及挥棒速度监测装置 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102512816B (zh) * | 2011-12-28 | 2013-10-23 | 哈尔滨商业大学 | 棒球发射式供球及挥棒速度监测装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US6350211B1 (en) * | 1999-02-12 | 2002-02-26 | Laura Zane Kolmar | Baseball pitching aid |
CN2485002Y (zh) * | 2001-06-26 | 2002-04-10 | 纪天生 | 改进的棒球打击练习器 |
CN2507514Y (zh) * | 2001-09-17 | 2002-08-28 | 蔡启德 | 棒球打击练习器 |
US20030158004A1 (en) * | 2002-02-16 | 2003-08-21 | Leal Jose E. | Hitting practice training equipment |
CN102512816B (zh) * | 2011-12-28 | 2013-10-23 | 哈尔滨商业大学 | 棒球发射式供球及挥棒速度监测装置 |
CN202410072U (zh) * | 2011-12-29 | 2012-09-05 | 哈尔滨商业大学 | 旋转式棒球发射供球及挥棒速度监测装置 |
CN202605682U (zh) * | 2011-12-29 | 2012-12-19 | 哈尔滨师范大学 | 旋转式棒球悬浮供球及挥棒速度监测装置 |
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Inventor after: Dong Xin Inventor after: Luo Fang Inventor after: Xia Guobin Inventor after: Yang Shougang Inventor after: Ma Xingshuang Inventor after: Liu Zhigang Inventor after: Ding Dayong Inventor before: Xia Guobin Inventor before: Yang Shougang Inventor before: Ma Xingshuang Inventor before: Liu Zhigang Inventor before: Ding Dayong |
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Free format text: CORRECT: INVENTOR; FROM: XIA GUOBIN YANG SHOUGANG MA XINGSHUANG LIU ZHIGANG DING DAYONG TO: DONG XIN LUO FANG XIA GUOBIN YANG SHOUGANG MA XINGSHUANG LIU ZHIGANG DING DAYONG |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20141228 |
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