Title:
エクササイズ計算尺付きカードセット
Document Type and Number:
Japanese Patent JP4995992
Kind Code:
B1
Inventors:
Takuya Tamura
Application Number:
JP2012027908A
Publication Date:
August 08, 2012
Filing Date:
February 13, 2012
Export Citation:
Assignee:
Takuya Tamura
International Classes:
G06C3/00
Domestic Patent References:
| JPS524893U | 1977-01-13 | |||
| JPS58155022U | 1983-10-17 | |||
| JPS6331468U | 1988-03-01 |