Inventor ntawm hluav taws xob siab cooker
Dec 11, 2022
Wang Yongguang, tus tsim hluav taws xob siab cooker thiab so haujlwm engineer ntawm Mechanical Research Institute ntawm Suav Academy ntawm Sciences, tau thov mus rau Lub Xeev Lub Tsev Haujlwm Saib Xyuas Kev Txawj Ntse rau kev tsim khoom patent ntawm lub tshuab hluav taws xob lub tshuab hluav taws xob load qauv thaum Lub Ib Hlis 9, 1991. Raws li rau Tuam Tshoj txoj cai Patent, lub sij hawm ntawm kev tiv thaiv rau invention patents yog 20 xyoo, uas txhais tau hais tias Wang Yongguang txoj cai patent yuav siv tau mus txog rau thaum Lub ib hlis ntuj 8, 2011.
