Instructional printing equipment

Details Instructional printing equipment Instructional printing equipment

1985-08-22

1987-08-11

Grieb, William H.

Education and demonstration

Language

Writing or printing by hand

G09B 1104

Patent

active

046858857

ABSTRACT:
Instructional printing equipment for teaching the correct manner of printing letters and/or numerals includes a set of letters and/or numerals each formed as a block with at least one groove forming the configuration of a letter or numeral concerned. Each groove has a surface shaped to facilitate movement of a writing instrument along the groove in a preferred direction to be used when writing the letter or numeral concerned and to resist the movement of the writing instrument therealong in an opposite direction.

REFERENCES:
patent: 3197892 (1965-08-01), Hancy
patent: 3731402 (1973-05-01), Paul
patent: 3774319 (1973-11-01), Sprowls
patent: 3869813 (1975-03-01), Hancy

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