Translations:Hump filler/2/en

The system had some diffusion at the beginning of 1900, as an alternative to the success of the Conklin crescent filler, one of the best realized versions was the so-called Wawco filler conceived by William Welty (patent nº US-834542) and used for the pens produced by the latter both with the Wawco brand and with the other brands used by the company.

Related Patents

• Patent n° US-834542, of 1906-10-30, requested on 1906-02-23, of William A. Welty, Welty. Fountain pen.

• Patent n° US-916513, of 1909-03-30, requested on 1908-04-27, of William A. Welty, Welty. Self-filling Fountain-Pen.

• Patent n° GB-190909893, of 1909-07-01, requested on 1908-04-27, of William A. Welty, Welty. Improvements in Self-filling Fountain Pens.