X-Nico

2 unusual facts about Mechanical pencil


Mechanical pencil

The first patent for a refillable pencil with lead-propelling mechanism was issued to Sampson Mordan and John Isaac Hawkins in Britain in 1822.

The mechanical pencil became successful in Japan with some improvements in 1915 by Tokuji Hayakawa, a metal worker who had just finished his apprenticeship.



see also

Keeran

Charles Rood Keeran (16 April 1883 - June 9, 1948) was an Illinois inventor and businessman and patent holder and pioneer of the mechanical pencil.

Yard-O-Led

After the Second World War the company merged with Sampson Mordan Ltd whose founder had patented the first mechanical pencil in 1822.