Who Invented the Paperclip? - WorldAtlas

The paper clip is believed to have been invented by Johan Vaaler in Norway in 1899.

Great Inventions Of The 19th Century - WorldAtlas

Paper Clips

What are the groundbreaking inventions that changed the history of technology to date? - Quora

From WWII to the Space Race: The Story of Project Paperclip

100+ Free Paperclip & Stationery Images - Pixabay - Clip Art Library

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Wiley/National Geographic College Atlas of the World: 9780470888872: de Blij, Harm J., Downs, Roger: Books

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When were some of the great inventions predicted for the first time? Like for example, did 400 years ago someone predicted cars? Did 150 years ago someone predicted smartphones? Did 300 years

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