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Diagnostic system and method for phonological awareness,...

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

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Diagnostically and audibly responsive computer learning...

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

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Dichotic-diotic paired-association for learning of verbal materi

Education and demonstration – Language – Foreign
Patent

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Dynamic language training system

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

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Dynamic language training system

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

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Dynamic reading instruction

Education and demonstration – Language
Reexamination Certificate

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Dyslexia reading device

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

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Educational aid

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

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Educational aid and method

Education and demonstration – Language
Reexamination Certificate

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Educational aid and method for using same

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

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Educational aid and method of using same

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

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Educational aid for spelling

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

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Educational aid with substitutable magnetic items

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational and amusement apparatus

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational apparatus employing playground equipment or the like

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational appliance for teaching handwriting skills

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

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Educational blocks

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational book-like toy

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational children's toy

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent

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Educational device

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

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