Title:
ABACUS TRAINING DEVICE
Document Type and Number:
Japanese Patent JP2009193038
Kind Code:
A
Abstract:
To provide a training device useful for teaching, to novices or beginners, how an abacus works, position of beads, and how to recognize the numeric values.
The abacus training device is so configured that a slide plate (3) showing numbers 0-9 is disposed on the column part (2) where the beads (1) of an abacus move.
Inventors:
MIYANAGA HIDETAKA
Application Number:
JP2008060223A
Publication Date:
August 27, 2009
Filing Date:
February 12, 2008
Export Citation:
Assignee:
MIYANAGA HIDETAKA
International Classes:
G09B19/02
Previous Patent: RESIST COMPOSITION AND RESIST PATTERN FORMING METHOD
Next Patent: INDICATOR FOR SALES PROMOTION OR THE LIKE
Next Patent: INDICATOR FOR SALES PROMOTION OR THE LIKE