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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 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.

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.