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Follows 200 years of human inventive genius. The Invention Rule provides an overview of the history of innovations from 1800 to the year 2000. Covers the essential branches of technology, from the sewing machine via blue jeans to the zip fastener and from the telegraph via the Morse Alphabet to the Atlantic Cable. The reverse of the ruler puts inventions in their historical context. 2 metre long folding wooden ruler.

Produktbeschreibung
Follows 200 years of human inventive genius. The Invention Rule provides an overview of the history of innovations from 1800 to the year 2000. Covers the essential branches of technology, from the sewing machine via blue jeans to the zip fastener and from the telegraph via the Morse Alphabet to the Atlantic Cable. The reverse of the ruler puts inventions in their historical context. 2 metre long folding wooden ruler.