CN212583087U - 一种预制楼梯结构 - Google Patents
一种预制楼梯结构 Download PDFInfo
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- CN212583087U CN212583087U CN202020752045.5U CN202020752045U CN212583087U CN 212583087 U CN212583087 U CN 212583087U CN 202020752045 U CN202020752045 U CN 202020752045U CN 212583087 U CN212583087 U CN 212583087U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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 prefabricated stair structure Effective date of registration: 20220117 Granted publication date: 20210223 Pledgee: Shandong Rongcheng Rural Commercial Bank Co.,Ltd. Pledgor: WEIHAI FENG HUI BUILDING INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022980000628 |
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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: 20230206 Granted publication date: 20210223 Pledgee: Shandong Rongcheng Rural Commercial Bank Co.,Ltd. Pledgor: WEIHAI FENG HUI BUILDING INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022980000628 |
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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 prefabricated staircase structure Effective date of registration: 20231218 Granted publication date: 20210223 Pledgee: Shandong Rongcheng Rural Commercial Bank Co.,Ltd. Pledgor: WEIHAI FENG HUI BUILDING INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2023980072230 |