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In 1916 [[Conklin]] introduced an innovative spring clip, that can be open very easily; for its simplicity and elegance the same mechanism has been used today by modern companies like Visconti. The sales of fountain pens, although declining, remained at the top of the market, also if [[Conklin]] models become to be considered a little dated.

In [[1916]] [[Conklin]] introduced an innovative spring clip, that can be open very easily; for its simplicity and elegance the same mechanism has been used today by modern companies like Visconti, the only patent found about it ({{Cite patent|US|1267575}}) was applied in [[1917]]. The sales of fountain pens, although declining, remained at the top of the market, also if [[Conklin]] models become to be considered a little dated.