tdihc-2023-08-07-revolving-door-patent

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On this day in 1888, American inventor Theophilus Van Kannel was granted a patent for the revolving door.

<p>On this day in 1888, American inventor Theophilus Van Kannel was granted a patent for the revolving door.</p>

From the desk of “Stuff You Missed in History Class,” “This Day in History Class” quickly recounts a tidbit from today’s events in history.

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/f81cf05d-aff4-4a61-acbd-b0560171cd87/transcript