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Creata pagina con "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-c..."
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 {{Cite patent|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.<noinclude>
==Related Patents==
{{ListsPatentsFeature|hump filler}}
[[Category:Translated Pages]]
</noinclude>
==Related Patents==
{{ListsPatentsFeature|hump filler}}
[[Category:Translated Pages]]
</noinclude>