CN204800014U - 软硬结合板加工用微型钻头 - Google Patents
软硬结合板加工用微型钻头 Download PDFInfo
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- CN204800014U CN204800014U CN201520254130.8U CN201520254130U CN204800014U CN 204800014 U CN204800014 U CN 204800014U CN 201520254130 U CN201520254130 U CN 201520254130U CN 204800014 U CN204800014 U CN 204800014U
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106113171A (zh) * | 2016-08-17 | 2016-11-16 | 江苏飞达钻头股份有限公司 | 木工修光、扩孔钻 |
CN106624080A (zh) * | 2016-12-20 | 2017-05-10 | 大连理工大学 | 一种阶梯微齿双刃带钻锪一体钻头 |
CN111894470A (zh) * | 2020-07-20 | 2020-11-06 | 中国石油天然气股份有限公司 | Pdc钻头、确定其排屑槽的螺旋角度的方法及钻井方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106113171A (zh) * | 2016-08-17 | 2016-11-16 | 江苏飞达钻头股份有限公司 | 木工修光、扩孔钻 |
CN106624080A (zh) * | 2016-12-20 | 2017-05-10 | 大连理工大学 | 一种阶梯微齿双刃带钻锪一体钻头 |
CN106624080B (zh) * | 2016-12-20 | 2018-10-16 | 大连理工大学 | 一种阶梯微齿双刃带钻锪一体钻头 |
CN111894470A (zh) * | 2020-07-20 | 2020-11-06 | 中国石油天然气股份有限公司 | Pdc钻头、确定其排屑槽的螺旋角度的方法及钻井方法 |
CN111894470B (zh) * | 2020-07-20 | 2022-03-29 | 中国石油天然气股份有限公司 | Pdc钻头、确定其排屑槽的螺旋角度的方法及钻井方法 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 473500 west side of Tower Road, Xinye County, Henan, Nanyang Patentee after: Xinye Ding hi tech Seiko technology Co., Ltd. Address before: 473500, Nanyang, Henan province Zhongxing Road, Xinye County Xinye Ding Tai Electronic Seiko technology Co., Ltd. Patentee before: Xinye Dingtai Electronic Fine Technology Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171221 Address after: 473500 west side of Zhongxing Road, Xinye County, Nanyang City, Henan Patentee after: Nanyang Ding Hi Tech Co., Ltd. Address before: 473500 west side of Tower Road, Xinye County, Henan, Nanyang Patentee before: Xinye Ding hi tech Seiko technology Co., Ltd. |
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CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: Intersection of Zhongxing Road and Heyuan Road, Xinye County, Nanyang City, Henan Province Patentee after: NANYANG DINGTAI HIGH-TECH Co.,Ltd. Address before: 473500 West Side of Zhongxing Road, Xinye County, Nanyang City, Henan Province Patentee before: NANYANG DINGTAI HIGH-TECH Co.,Ltd. |