基于Logistic曲线具有S型刀刃的断屑钻头

Release time:2019-04-15|Hits:

Affilication of Author(s):机械工程学院

Patent Applicant:guokai,sunjie

Type of Patent:发明

Application Number:201610602257.3

Number of Inventors:2

Service Invention or Not:no

Application Date:2016-07-28

Publication Date:2018-03-30

Authorization Date:2018-03-30