Translations:Parker/8/en
Versione del 10 mar 2013 alle 01:03 di Piccardi (discussione | contributi)
He obtained his first patent (nº US-416944) in 1889, and a subsequent patent (nº US-512319) in 1894 for his special Lucky Curve feeder, which went back inside the pen with a special curved shape that is claimed to be able to call back the excess ink when the pen was not in use. In 1891 George Parker associated with William F. Palmer, an insurer and they incorporated The Parker Pen Company in Janesville.