Inventor · disambiguated record

Guoying Song

Also filed as: SONG GUOYING

1 granted patent·0 citations·filing 2021–2021

1Inventor score

Technology areasE01D

Files withCHINA RAILWAY NO 3 ENG GROUP1

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1 record

0130US11655600B2Method for installing steel tube archesCHINA RAILWAY NO 3 ENG GROUP·Filed 2021·Granted May 23, 2023·0 cites·10 claims

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