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Apparatus employing question and answer grid arrangement and met

Education and demonstration – Language – Foreign
Patent

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Apparatus for aiding in learning correct penmanship

Education and demonstration – Language – Writing or printing by hand
Patent

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Apparatus for and method of teaching reading and spelling

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Apparatus for constructing crossword puzzles

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Apparatus for efficient reading

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Apparatus for entertainment and education and method of use

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Reexamination Certificate

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Apparatus for interactive language training

Education and demonstration – Language
Patent

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Apparatus for shared reading

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Apparatus for teaching inscription of characters

Education and demonstration – Language – Writing or printing by hand
Patent

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Apparatus for turning pages of book

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Reexamination Certificate

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Article for improving correspondence letter writing skills

Education and demonstration – Language – Writing or printing by hand
Patent

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Assessment of spelling and related skills

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Reexamination Certificate

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Audio frequency converter for audio-phonatory training

Education and demonstration – Language – Speech
Patent

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Audio frequency converter for audio-phonatory training

Education and demonstration – Language – Speech
Patent

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Audio interactive tutor

Education and demonstration – Language
Patent

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Audio system with language exercise function

Education and demonstration – Language
Patent

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Audio-frequency converter apparatus, for treating subjects suffe

Education and demonstration – Language – Speech
Patent

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Audio-frequency converter apparatus, installation including said

Education and demonstration – Language – Speech
Patent

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Audio-visual language teaching apparatus and method

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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Audio-visual work with a series of visual word symbols coordinat

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
Patent

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