CN213807564U - 一种用于随钻跟管工法的旋挖清孔钻具 - Google Patents
一种用于随钻跟管工法的旋挖清孔钻具 Download PDFInfo
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- CN213807564U CN213807564U CN202022868603.7U CN202022868603U CN213807564U CN 213807564 U CN213807564 U CN 213807564U CN 202022868603 U CN202022868603 U CN 202022868603U CN 213807564 U CN213807564 U CN 213807564U
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- drilling tool
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- hole cleaning
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Cited By (1)
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CN113982488A (zh) * | 2021-09-10 | 2022-01-28 | 浙江天弘机器人科技有限公司 | 一种深基坑掘进机器人及其操作方法 |
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Cited By (2)
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CN113982488A (zh) * | 2021-09-10 | 2022-01-28 | 浙江天弘机器人科技有限公司 | 一种深基坑掘进机器人及其操作方法 |
CN113982488B (zh) * | 2021-09-10 | 2024-03-26 | 浙江天弘机器人科技有限公司 | 一种深基坑掘进机器人及其操作方法 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A rotary drilling and hole cleaning tool for pipe while drilling Effective date of registration: 20220520 Granted publication date: 20210727 Pledgee: Bank of Guangzhou Limited by Share Ltd. Jiangmen branch Pledgor: Heshan Houji Construction Machinery Co.,Ltd. Registration number: Y2022980006004 |
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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 |
Date of cancellation: 20230830 Granted publication date: 20210727 Pledgee: Bank of Guangzhou Limited by Share Ltd. Jiangmen branch Pledgor: Heshan Houji Construction Machinery Co.,Ltd. Registration number: Y2022980006004 |
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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 utility model: A rotary drilling tool for hole cleaning during drilling and pipe following construction method Effective date of registration: 20230831 Granted publication date: 20210727 Pledgee: Bank of Guangzhou Limited by Share Ltd. Jiangmen branch Pledgor: Heshan Houji Construction Machinery Co.,Ltd. Registration number: Y2023980054757 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |