The Patents Behind Seven Classic Back-to-School Supplies #MakerEducation

Fun read from SmithsonianMag.
It’s hard to think about back to school when it’s still steamy outside and the sun seems to beg, like our kids, to stay out late. But here we are: mid-August, school just a few short days or weeks away. As you’re gathering school supplies, consider their histories. Someone invented that crayon sharpener, that ball point pen, whether in a corporate lab or on a messy suburban kitchen table. Here are some of the patents behind our most beloved back-to-school necessities.
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