Translations:Hump filler/2/en
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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.