'Pre-Xerox, in 1806 Ralph Wedgwood came up with this "apparatus for producing duplicates of writing"'
carbon paper
FAMOUS FIRSTS: Pre-Xerox, in 1806 Ralph Wedgwood came up with this apparatus for producing duplicates of writing
Pre-Xerox, in 1806 Ralph Wedgwood came up with this "apparatus for producing duplicates of writing"
Pre-Xerox, in 1806 Ralph Wedgwood came up with this "apparatus for producing duplicates of writing"
FAMOUS FIRSTS
carbon paper
FAMOUS FIRSTS