Yunzao Li

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Centrifugal planetary friction transmission
- Patent number 5,489,244
- Issue date Feb 6, 1996
- Yunzao Li
- Yue Zheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...