Great Little Inventions: the Paper Clip
What is the real origin of the paper clip? Who is responsible of this little invention? Find out why it is a norwegian symbol of patriotism with OpenMind
Inventors and Inventions of the Industrial Revolution: Stories & History, Britannica
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The history of the paper clip: It was invented in 1899. It hasn't been improved upon since.
Top 10 Inventions of the Industrial Revolution - World History Encyclopedia
Paper clip - Wikipedia
Best How To List 100 Paperclip Uses Easy Hack Now - KeepClimbing
The history behind paper clips, Just Learning, Learning Beyond Books
Invention Convention Ideas for School Projects
Vintage Lady's Hand Shaped Book Clip Gold Metal Paper Clips Travelers Notebook Accessories Planner Decoration School Stationery : : Office Products
Inventions are for Summer
The Paper Clip The Engines of Our Ingenuity
Learn How to Make an Easy Paper Airplane - Little Passports
The History and Key Facts about the Inventor of the Paper Clip - Discover Walks Blog