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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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2

jan 2, 1936 - W. B. Elwood invents the magnetic reed switch

Added to timeline:

10 Feb 2018
0
0
644
20th Century

Date:

jan 2, 1936
Now
~ 88 years ago
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