Title:
Education assistance implement
Document Type and Number:
Japanese Patent JP6251857
Kind Code:
B2
Inventors:
森田 博信
Application Number:
JP2015155484A
Publication Date:
December 27, 2017
Filing Date:
July 17, 2015
Export Citation:
Assignee:
森田 博信
International Classes:
G09B1/28
Domestic Patent References:
| JP56075772U | ||||
| JP1453447S | ||||
| JP7034454U | ||||
| JP49068836A |
Foreign References:
| US4470821 |