The history of the paper clip: It was invented in 1899. It hasn't been improved upon since.
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Binder clip - Wikipedia
Lion Paper Clips - Size 5 | Leone Dellera Paper Clips | Made in Italy – The Paper Mind
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What type of metal are paper clips made out of? - Quora
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How paper clip is made - material, manufacture, making, history, used, product, industry, machine, History
Bunch of silver paper clips: Más de 367 fotos de stock con licencia libres de regalías | Shutterstock
Lion Paper Clips - Size 3 | Leone Dellera Paper Clips | Made in Italy – The Paper Mind
Paper Clips, Made of Iron, are Curved in a White Background Stock Photo - Image of attach, equipment: 155247644
Paper clip - Wikipedia
One blue paper clip made of metal, isolated with a white background, for office, work, school and business concepts Stock Photo - Alamy
Tiny weapons made from paper clips : r/Paperclips
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Paper Clips
Rojdeal Paper Clips, V Clips Gem Clips, U Clips, (26 MM Each, 500 Piece) Made by Metal Steel, for Holding Loose Papers (Number of Items: 500) : Amazon.in: Office Products
What type of metal are paper clips made out of? - Quora
ACCO Recycled Paper Clips - No. 1 - 1.28" (32.54 mm) Length - 10 Sheet Capacity - Durable, Reusable - 100 / Box - Silver - Metal
The Paper Clip - Scientific American
Paper clip - Wikipedia
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What Type of Metal Is a Paper Clip? - Our Pastimes
