Inventor · disambiguated record

Changyin Ding

Also filed as: DING CHANGYIN

1 granted patent·0 citations·filing 2015–2015

1Inventor score

Technology areasE21D

Files withGUANGZHOU JISHI CONSTRUCTION GROUP CO LTD1

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1 record

0112US9822506B2Construction system for subway stationGUANGZHOU JISHI CONSTRUCTION GROUP CO LTD·Filed 2015·Granted Nov 21, 2017·0 cites·9 claims

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