Title:
教具
Document Type and Number:
Japanese Patent JP3183881
Kind Code:
U
Inventors:
Yoshimi Masami
Application Number:
JP2013001598U
Publication Date:
June 06, 2013
Filing Date:
March 23, 2013
Export Citation:
Assignee:
Yoshimi Masami
International Classes:
G09B19/02; G06C1/00
Attorney, Agent or Firm:
Natsuka Ito