History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent

Submitted ⁨⁨1⁩ ⁨week⁩ ago⁩ by ⁨SoyTDI@lemmy.world⁩ to ⁨history@lemmy.world⁩

https://todayinsci.com/Events/Patent/UltimatePropellerHead.htm