Noctograph
A noctograph is a writing instrument composed of a piece of paper whose underside is treated with printer's ink carbon paper and a metal board with clips to hold the paper in place and guidelines to make for straight writing in the dark. The user writes with a metal stylus, and thus does not have to ink a pen or worry about knocking an inkstand over. The original purpose was to allow the blind or partially sighted to write with more ease than with a traditional pen, although it has also been used by the fully sighted to write in the dark. It was originally patented by Ralph Wedgwood in 1806.
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Noctograph
A noctograph is a writing instrument composed of a piece of paper whose underside is treated with printer's ink carbon paper and a metal board with clips to hold the paper in place and guidelines to make for straight writing in the dark. The user writes with a metal stylus, and thus does not have to ink a pen or worry about knocking an inkstand over. The original purpose was to allow the blind or partially sighted to write with more ease than with a traditional pen, although it has also been used by the fully sighted to write in the dark. It was originally patented by Ralph Wedgwood in 1806.
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A noctograph is a writing inst ...... ted by Ralph Wedgwood in 1806.
@en
Noctograph var en 1806 patente ...... syn för att skriva i mörkret.
@sv
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A noctograph is a writing inst ...... ted by Ralph Wedgwood in 1806.
@en
Noctograph var en 1806 patente ...... syn för att skriva i mörkret.
@sv
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Noctograph
@de
Noctograph
@en
Noctograph
@sv