Lei Liu   

Associate Professor
Supervisor of Master's Candidates

MORE> Recommended MA Supervisor
Language：English

Patents

Title:一种凹、凸环面渐开线齿轮及其设计、加工 方法

Hits:

Type of Patent:Invent

State of Patent:Authorized patents

Authorization number:ZL201210081587.4

Service Invention or Not:yes

Application Date:2012-03-26

Authorization Date:2015-07-29

Document Type:DOCUMENTTYPE_ID139324

Disigner of the Invention:刘雷

Copyright©2018- Nanjing University of Aeronautics and Astronautics·Informationization Department(Informationization Technology Center)
Click:    MOBILE Version

Open time:..

The Last Update Time: ..