Which individual is credited with achieving the final step to ubiquitous, inexpensive mass-market dominance for the ballpoint pen?

Answer

Marcel Bich, by perfecting low-cost manufacturing of the Bic Cristal

Marcel Bich, a French manufacturer, focused on perfecting the production process to make the pen cheap to manufacture while maintaining high quality, leading to the highly successful Bic Cristal.

Which individual is credited with achieving the final step to ubiquitous, inexpensive mass-market dominance for the ballpoint pen?
Historyinventorpatentballpoint penwriting instrument