Light-spot-operated typewriter for severely disabled patients

• Book ID: 102636389
• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 144 KB
• Volume: 4
• Category: Article
• ISSN: 0003-6870
• DOI: 10.1016/0003-6870(73)90277-9

✦ Synopsis

International graphical symbols standard

General principles for the formulation of graphical symbols is the subject of a document recently issued by the International Electrotechnical Commission.

IEC Publication 416 establishes uniform principles for the formulation of graphical symbols, their graphic form, meaning, and application.