YANCHUN LIU

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DALIAN CITY, LIAONING PROVINCE, CN

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Patents Grantslast 30 patents

Information Patent Grant
Surveying stand capable of precisely adjusting angle of scale
- Patent number 11,402,054
- Issue date Aug 2, 2022
- DALIAN SENBIOR SURVEYING INSTRUMENT TECHNOLOGY CO., LTD.
- Yanchun Liu
- G01 - MEASURING TESTING
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
Information Patent Application
SURVEYING STAND CAPABLE OF PRECISELY ADJUSTING ANGLE OF SCALE
- Publication number 20190086021
- Publication date Mar 21, 2019
- DALIAN SENBIOR SURVEYING INSTRUMENT TECHNOLOGY CO., LTD.
- YANCHUN LIU
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...