CN214533052U - Mining intrinsic safety type automatic watering dust suppression control box - Google Patents
Mining intrinsic safety type automatic watering dust suppression control box Download PDFInfo
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- CN214533052U CN214533052U CN202120686109.0U CN202120686109U CN214533052U CN 214533052 U CN214533052 U CN 214533052U CN 202120686109 U CN202120686109 U CN 202120686109U CN 214533052 U CN214533052 U CN 214533052U
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CN202120686109.0U CN214533052U (en) | 2021-04-02 | 2021-04-02 | Mining intrinsic safety type automatic watering dust suppression control box |
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CN202120686109.0U CN214533052U (en) | 2021-04-02 | 2021-04-02 | Mining intrinsic safety type automatic watering dust suppression control box |
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CN214533052U true CN214533052U (en) | 2021-10-29 |
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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 | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mine intrinsic safety automatic watering and dust reduction control box Effective date of registration: 20220608 Granted publication date: 20211029 Pledgee: Shandong Jining Yanzhou Rural Commercial Bank Co.,Ltd. Pledgor: Shandong Rui Rui Electric Co.,Ltd. Registration number: Y2022980007219 |
|
PC01 | Cancellation 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: 20230615 Granted publication date: 20211029 Pledgee: Shandong Jining Yanzhou Rural Commercial Bank Co.,Ltd. Pledgor: Shandong Rui Rui Electric Co.,Ltd. Registration number: Y2022980007219 |
|
PE01 | Entry into force 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 Mining Intrinsically Safe Automatic Sprinkler Dust Control Box Effective date of registration: 20230616 Granted publication date: 20211029 Pledgee: Shandong Jining Yanzhou Rural Commercial Bank Co.,Ltd. Pledgor: Shandong Rui Rui Electric Co.,Ltd. Registration number: Y2023110000245 |