Title:
【考案の名称】転倒・裏返し使用可能並びに定位自在のそろばん
Document Type and Number:
Japanese Patent JPH0737139
Kind Code:
Y2
More Like This:
| WO/2007/043739 | A MULTIPURPOSE ABACUS |
Inventors:
Su Sunday
Application Number:
JP564093U
Publication Date:
August 23, 1995
Filing Date:
January 08, 1993
Export Citation:
Assignee:
Su Sunday
International Classes:
G06C1/00; (IPC1-7): G06C1/00
Attorney, Agent or Firm:
Uno Harumi
Next Patent: 介護用スライド移載装置