Letterkaarten om te bedienen volgens de blikrichting van de ogen

Letterkaarten om te bedienen volgens de blikrichting van de ogen

  • Letter and symbol sets and boards (ISO 22.21.03)
  • Производител: Manufacturer unknown; see the original document for national suppliers
  • Дата на въвеждане: 20.4.2012 г.
  • Последна актуализация: 14.2.2025 г.
  • База данни: Vlibank (BE)

Описание

To operate a letter card with the eyes, a see-through window is used, with letters, or with letters, numbers & functions and words.

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