 Rasmus Malling-Hansen

Rasmus Malling-Hansen (5 September 1835 – 27 September 1890) was a Danish inventor, minister and principal at the Royal Institute for the Deaf.Malling-Hansen developed his Hansen Writing Ball further throughout the 1870s and '80s, and in 1874 he patented a new model jointly in which the cylinder was replaced by a flat carriage on which the paper was fastened.