CN211736109U - 一种多层展厅的跨层楼梯 - Google Patents
一种多层展厅的跨层楼梯 Download PDFInfo
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- CN211736109U CN211736109U CN202020097530.3U CN202020097530U CN211736109U CN 211736109 U CN211736109 U CN 211736109U CN 202020097530 U CN202020097530 U CN 202020097530U CN 211736109 U CN211736109 U CN 211736109U
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CN202020097530.3U CN211736109U (zh) | 2020-01-16 | 2020-01-16 | 一种多层展厅的跨层楼梯 |
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CN202020097530.3U CN211736109U (zh) | 2020-01-16 | 2020-01-16 | 一种多层展厅的跨层楼梯 |
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CN211736109U true CN211736109U (zh) | 2020-10-23 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: Room 8620, building 2, 161 Changjiang street, Changjiang Farm, Chongming District, Shanghai 202150 Patentee after: Shanghai extreme wisdom Exhibition Co.,Ltd. Address before: Room 206-5, building 4, no.700 Xingcun Road, Chongming District, Shanghai 202150 Patentee before: Extreme intelligence Exhibition (Shanghai) Co.,Ltd. |
|
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 multi story staircase for exhibition halls Effective date of registration: 20230531 Granted publication date: 20201023 Pledgee: Industrial Bank Co.,Ltd. Shanghai Exchange Branch Pledgor: Shanghai extreme wisdom Exhibition Co.,Ltd. Registration number: Y2023310000221 |