CN213928445U - 一种隧道排水用防堵塞装置 - Google Patents
一种隧道排水用防堵塞装置 Download PDFInfo
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Effective date of registration: 20230414 Address after: No. 582, Mount Taishan Street, Mount Taishan District, Tai'an, Shandong 271000 Patentee after: Zhang Bo Address before: No. 209-10, Guangzhou road, Gulou District, Nanjing, Jiangsu 210009 Patentee before: Liu Yajuan |
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TR01 | Transfer of patent right | ||
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Effective date of registration: 20230420 Address after: 271000 East Section of Zhongtianmen Street, Tai'an High tech Zone, Tai'an City, Shandong Province Patentee after: Zhongtai Hengbang Engineering Technology Co.,Ltd. Address before: No. 582, Mount Taishan Street, Mount Taishan District, Tai'an, Shandong 271000 Patentee before: Zhang Bo |