Jianbiao BAI

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Xuzhou, Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Blind bolt fastening device
- Patent number 10,941,803
- Issue date Mar 9, 2021
- China University of Mining and Technology
- Hongfei Chang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus for protecting roof tray when gob-side entry retaining en...
- Patent number 10,822,949
- Issue date Nov 3, 2020
- China University of Mining and Technology
- Jianbiao Bai
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BLIND BOLT FASTENING DEVICE
- Publication number 20200003247
- Publication date Jan 2, 2020
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Hongfei CHANG
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...