4. Education and demonstration
  5. Language
  6. Alphabet letter formation, recognition, or sequencing

Charles E. House

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Dual port memory controller

Static information storage and retrieval – Read/write circuit – Having particular data buffer or latch
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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Profile ID: LFUS-PAI-P-1804946

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