Yao LIU

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Dalian City, Liaoning Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Traverse-type measurement method for dual-system bilateral-survey c...
- Patent number 11,029,151
- Issue date Jun 8, 2021
- DALIAN SENBIOR SURVEYING INSTRUMENT TECHNOLOGY CO., LTD.
- Yanchun Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
TRAVERSE-TYPE MEASUREMENT METHOD FOR DUAL-SYSTEM BILATERAL-SURVEY C...
- Publication number 20190204077
- Publication date Jul 4, 2019
- Dalian Senbior Surveying Instrument Technology Co,. Ltd.
- Yanchun LIU
- G01 - MEASURING TESTING