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hong

Patents

PREFABRICATED STAIRS MODULAR ASSEMBLY MOLD AND ASSEMBLING METHOD THEREOF

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School Sign:第一单位

Disigner of the Invention:xiajunwu,向小芳,柏夏

Type of Patent:国内

State of Patent:专利授权

Application Number:US11034054B2

Service Invention or Not:no

Application Date:2019-10-08

Authorization Date:2021-07-15

First Author:hong