The Big Coloring Book of Crazy Patents: Coloring Pages For Future or Retired Engineers and Inventors | An Activity Book for Adults, Teens and Kids Who ... (Patent and Blueprint Coloring Books) - Softcover

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The PERFECT funny gift for your future, current, or retired person of science!

This big coloring book has 50 technical patent drawings of some of the funniest inventions in recent history. Enjoy hours of stress relieving coloring and/or follow the instructions inside the book on how to find the complete patent online to learn all about each innovation.

Makes a great gift for all ages!

This awesome book includes the following features:

• High quality, pure white paper


• Large format, 8.5 x 11 inch pages


• Marker safe! Printed single sided to prevent bleed through

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