CN212930348U - Air-raid shelter ventilation structure - Google Patents
Air-raid shelter ventilation structure Download PDFInfo
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- CN212930348U CN212930348U CN202021310033.3U CN202021310033U CN212930348U CN 212930348 U CN212930348 U CN 212930348U CN 202021310033 U CN202021310033 U CN 202021310033U CN 212930348 U CN212930348 U CN 212930348U
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CN202021310033.3U CN212930348U (en) | 2020-07-07 | 2020-07-07 | Air-raid shelter ventilation structure |
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CN202021310033.3U CN212930348U (en) | 2020-07-07 | 2020-07-07 | Air-raid shelter ventilation structure |
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CN212930348U true CN212930348U (en) | 2021-04-09 |
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CN202021310033.3U Active CN212930348U (en) | 2020-07-07 | 2020-07-07 | Air-raid shelter ventilation structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113457035A (en) * | 2021-05-26 | 2021-10-01 | 龚雅斌 | Novel civil air defense engineering wartime ventilation equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113457035A (en) * | 2021-05-26 | 2021-10-01 | 龚雅斌 | Novel civil air defense engineering wartime ventilation equipment |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230427 Address after: No. 42, Group 4, Jigu Village, Xifuji Township, Daming County, Handan City, Hebei Province, 056000 Patentee after: Zheng Zhanli Address before: 343009 No.88 Binjiang Avenue, Qingyuan District, Ji'an City, Jiangxi Province Patentee before: Hui Penggang |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230607 Address after: No. 42, Group 4, Jigu Village, Xifuji Township, Daming County, Changping District, Beijing 102200 Patentee after: Beijing Beisheng Tongda air conditioning and ventilation equipment Co.,Ltd. Address before: No. 42, Group 4, Jigu Village, Xifuji Township, Daming County, Handan City, Hebei Province, 056000 Patentee before: Zheng Zhanli |
|
TR01 | Transfer of patent right | ||
CP02 | Change in the address of a patent holder |
Address after: 102200 South side of Xixinfeng Village Committee, Cuicun Town, Changping District, Beijing Patentee after: Beijing Beisheng Tongda air conditioning and ventilation equipment Co.,Ltd. Address before: No. 42, Group 4, Jigu Village, Xifuji Township, Daming County, Changping District, Beijing 102200 Patentee before: Beijing Beisheng Tongda air conditioning and ventilation equipment Co.,Ltd. |
|
CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: 102200 South side of Xixinfeng Village Committee, Cuicun Town, Changping District, Beijing Patentee after: Beijing Beisheng Tongda air conditioning and ventilation equipment Co.,Ltd. Address before: No. 42, Group 4, Jigu Village, Xifuji Township, Daming County, Changping District, Beijing 102200 Patentee before: Beijing Beisheng Tongda air conditioning and ventilation equipment Co.,Ltd. |
|
CP02 | Change in the address of a patent holder |