Education and demonstration – Language – Writing or printing by hand
Patent
1985-12-27
1987-06-02
Grieb, William H.
Education and demonstration
Language
Writing or printing by hand
G09B 1104
Patent
active
046699864
ABSTRACT:
A writing training device is disclosed, which comprises a base board with a surface having flexibility to such an extent as to be able to absorb the writing pressure to a certain extent and provided with letters, numerals, drawings, pictures or the like represented by grooves capable of receiving the tip of a pencil or like writing tool.
REFERENCES:
patent: 1887163 (1932-11-01), Lorber
patent: 3774319 (1973-11-01), Sprowls
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