For which monarch was the first handmade stapling machine invented? When was the safety pin created? What were the toothbrushes in ancient times made of? What were pencils first used for?This book is filled with facts about inventions that seem simple, but paved the way for other bigger discoveries.

Simple Inventions that changed the world

SKU: 9789385609237
₹125.00 Regular Price
₹93.75Sale Price
  • Aurthor :

    Om Books Editorial Team
  • Pages :

    32
  • Publisher :

    Om Books International
  • Language :

    English
  • Binding :

    paperback
 

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