Paper clip is a tool used to hold sheets of paper together, usually made of steel wire bent to a looped shape .
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10 Facts About Paper clip
2.
Middlebrook 1899 patent for a paper clip machine showing that the Gem was already in common use .
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3.
Paper clip was granted patents in Germany and in the United States for a paper clip of similar design, but less functional and practical, because it lacked the last turn of the wire.
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4.
Paper clip's version was never manufactured and never marketed, because the superior Gem was already available.
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5.
Originator of the Norwegian paper clip myth was an engineer of the Norwegian national patent agency who visited Germany in the 1920s to register Norwegian patents in that country.
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6.
Paper clip came across Vaaler's patent, but failed to detect that it was not the same as the then-common Gem-type clip.
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7.
The celebration of the alleged Norwegian origin of the paper clip culminated in 1999, one hundred years after Vaaler submitted his application for a German patent.
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8.
However, the figure in the foreground is not the paper clip depicted on that document, but the much better known "Gem".
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9.
The depicted paper clip is not the one he invented, but the successful Gem clip.
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10.
Paper clip image is the standard image for an attachment in an email client.
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