一种思维逻辑训练装置

Affilication of Author(s):人事处离退休干部工作处

Patent Coverage:国内

First Author:陈明

Type of Patent:实用新型

State of Patent:专利授权

Application Number:201921964236.1

Authorization number:11090815

Number of Inventors:1

Service Invention or Not:no

Application Date:2019-11-14

Publication Date:2020-07-28

Authorization Date:2020-07-28