4. Education and demonstration
  5. Language
  6. Writing or printing by hand

Stephen J. Prater

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Apparatus and method for assisting a disabled person to hand wri

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

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Platform lift

Fire escape – ladder – or scaffold – Platform with elevating or lowering means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1546682

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