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...France'' and ''William P. De Witt'' assigned some of their patents (see [[Patents#Carter|here]]) to [[Carter]].

...r]] and [[Parker]]). The [[De Witt-La France]] owned also some significant patents, one for a very functional and easy to produce spring clip, then called ''[

...en Company]], according to others their pens were made by the [[De Witt-La France]], a fountain pen manufacturer whose facilities were close to those of [[Ca