CN215804702U - 一种充填采矿用的改进型填充体 - Google Patents
一种充填采矿用的改进型填充体 Download PDFInfo
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- CN215804702U CN215804702U CN202122178051.1U CN202122178051U CN215804702U CN 215804702 U CN215804702 U CN 215804702U CN 202122178051 U CN202122178051 U CN 202122178051U CN 215804702 U CN215804702 U CN 215804702U
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- powder
- waterproof
- plastic film
- wire
- filling mining
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CN202122178051.1U CN215804702U (zh) | 2021-09-09 | 2021-09-09 | 一种充填采矿用的改进型填充体 |
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CN202122178051.1U CN215804702U (zh) | 2021-09-09 | 2021-09-09 | 一种充填采矿用的改进型填充体 |
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CN215804702U true CN215804702U (zh) | 2022-02-11 |
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2021
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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: An improved filling body for backfill mining Effective date of registration: 20220819 Granted publication date: 20220211 Pledgee: China Construction Bank Co.,Ltd. Xiushui sub branch Pledgor: Jiangxi Xiushuixianglushan Tungsten Industry Co.,Ltd. Registration number: Y2022980013064 |
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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: 20230905 Granted publication date: 20220211 Pledgee: China Construction Bank Co.,Ltd. Xiushui sub branch Pledgor: Jiangxi Xiushuixianglushan Tungsten Industry Co.,Ltd. Registration number: Y2022980013064 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |