The history of the paper clip: It was invented in 1899. It hasn't been improved upon since.

The paper clip is something of a fetish object in design circles. Its spare, machined aesthetic and its inexpensive ubiquity landed it a spot in MoMA’s

Paper clip - Wikipedia

OLDEST LIVING GRADUATE WILLIAM KELLY, Class of 1899

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Lancaster City Museum - Today is International Paperclip Day! Did

The Curious History of Paperclips

The Project Gutenberg eBook of The Cromptons, by Mrs. Mary J. Holmes

The history of the paper clip: It was invented in 1899. It hasn't

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The History and Invention of the Paperclip

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The History of the Ever Versatile Paper Clip