March 2017

March 3, 2017

Fifty years between conception and innovation : The ball point pen

03rd March 2017, BUSINESS STANDARD

R. Gopalakrishnan, Author and Corporate Advisor, Email : rgopal@themindworks.me Pen maker John Loud got a ball point pen patent in 1888, Anton Shaeffer in 1901, Michael Brown in 1911, Lorenz presented a prototype ball pen in 1924,