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Between 1934 and 1935 (the two dates comes from different sources) [[Chilton]] introduced what is probably his masterpiece, the [[Wingflow]] model. The name come from the peculiar pen nib, cover by a patent ({{Cite patent|US|2089449}}) that was filed in 1935, equipped with lateral wings folded around the feeder, so that the nib could not be misaligned.

Between 1934 and [[1935]] (the two dates comes from different sources, but we use the second one, mentioned in a 1937 catalog) [[Chilton]] introduced what is probably his masterpiece, the [[Wing-flow]] model. The name come from the peculiar pen nib, cover by a patent ({{Cite patent|US|2089449}}) that was filed in [[1935]], equipped with lateral wings folded around the feeder, so that the nib could not be misaligned.