CN216361695U - 一种井下采场充填体强度检测取样装置 - Google Patents
一种井下采场充填体强度检测取样装置 Download PDFInfo
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sampling device for detecting the strength of a backfill in an underground stope Effective date of registration: 20220819 Granted publication date: 20220422 Pledgee: China Construction Bank Co.,Ltd. Xiushui sub branch Pledgor: Jiangxi Xiushuixianglushan Tungsten Industry Co.,Ltd. Registration number: Y2022980013064 |
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Date of cancellation: 20230905 Granted publication date: 20220422 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 | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sampling device for detecting the strength of filling materials in underground mining areas Effective date of registration: 20230925 Granted publication date: 20220422 Pledgee: China Construction Bank Co.,Ltd. Xiushui sub branch Pledgor: Jiangxi Xiushuixianglushan Tungsten Industry Co.,Ltd. Registration number: Y2023980058963 |
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