4. Communications: electrical
  5. Audible indication
  6. Percussion-type sound producer

Cyril Endfield

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Computer apparatus and remote keyboards therefor

Boots – shoes – and leggings
Patent

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Keyboard

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Portable word-processor

Boots – shoes – and leggings
Patent

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Portable word-processor

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-210883

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