Tag Archives: calculator

Claudia

Umbrellas for shoes, noodle coolers, dust mop onesies and other quirky inventions through time

Here’s a little-known October anniversary in which bean-counters and number-crunchers everywhere may find worth celebrating: The first patent was issued to Dorr Eugene Felt for an adding machine – an ancestor of the modern day calculator – on Oct. 11, 1887. The  Continue Reading »

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