CN211803979U - 一种便于更换钻头的工程用钻孔设备 - Google Patents
一种便于更换钻头的工程用钻孔设备 Download PDFInfo
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- CN211803979U CN211803979U CN201921961904.5U CN201921961904U CN211803979U CN 211803979 U CN211803979 U CN 211803979U CN 201921961904 U CN201921961904 U CN 201921961904U CN 211803979 U CN211803979 U CN 211803979U
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CN201921961904.5U CN211803979U (zh) | 2019-11-14 | 2019-11-14 | 一种便于更换钻头的工程用钻孔设备 |
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CN201921961904.5U CN211803979U (zh) | 2019-11-14 | 2019-11-14 | 一种便于更换钻头的工程用钻孔设备 |
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CN201921961904.5U Expired - Fee Related CN211803979U (zh) | 2019-11-14 | 2019-11-14 | 一种便于更换钻头的工程用钻孔设备 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20201111 Address after: Room 201, building 1, No.1 Shichang Road, Dongcheng Street, Dongguan City, Guangdong Province 523000 Patentee after: Dongguan Zhongqi Electric Co.,Ltd. Address before: Group 4, Bailong village, jinbaotang Town, Qiyang County, Yongzhou City, Hunan Province Patentee before: Meng Xiangying |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210531 Address after: Room 101, No.11, Lane 36, Hongshan Road, Nancheng street, Dongguan, Guangdong 523000 Patentee after: Dongguan kaixinsheng automation equipment Co.,Ltd. Address before: 523000 Room 201, building 1, No.1 Shichang Road, Dongcheng Street, Dongguan City, Guangdong Province Patentee before: Dongguan Zhongqi Electric Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 Termination date: 20211114 |
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CF01 | Termination of patent right due to non-payment of annual fee |